All yang is immortal, all yin is ghostly, and half yin and half yang is human. A person’s life is a gradual aging process, moving towards “chaos”. Without yang energy (the functions of the five organs and six bowels), life ceases. 1. Remember: Sleep is the primary element of health preservation. The ideal sleeping time is from 9 PM to 3 AM. This period represents the winter of the day, which is the time for storage; if one does not store in winter, there will be no growth in spring and summer, leading to fatigue the next day. 2. All medications treat symptoms, not the root cause, whether in TCM or Western medicine. All diseases arise from incorrect causes leading to incorrect results; if the incorrect cause is not removed, the incorrect result will not cease. The foundation of health lies in the heart; all methods arise from the heart. A pure heart leads to a pure body. Therefore, when ill, do not seek external help; rely on your own self-repair system to heal your ailments. Humans and animals are alike; animals heal themselves, and so can humans. 3. Correct concepts are far more helpful in eliminating diseases than expensive medications and dangerous surgeries. With the right concepts, you will make correct decisions, leading to correct actions, which can prevent many diseases. 4. All wisdom possessed by humans is not learned from books but arises from a sincere and pure heart (the bodhicitta spoken of in Buddhism), emerging from tranquility. 5. Humans are the most perfectly structured beings among all creatures; a healthy body is innate. The regulation of health relies on the body’s inherent self-regulating and repairing system, not external factors, which can only play a supportive role. 6. Most illnesses in humans are manifestations of the body regulating and clearing waste; they are states of the body’s automatic balance. Therefore, these should be regarded as normal physiological phenomena, not as causes of disease to be eradicated. When ill, one should not harbor resentment or anger; a calm heart leads to smooth qi, which in turn leads to smooth blood flow, and when qi and blood flow smoothly, all diseases dissipate. 7. Human health relies on two major elements: 1) Sufficient qi and blood; 2) Unobstructed meridians (including blood vessels and waste elimination pathways). 8. Sufficient qi and blood depend on: adequate food + bile + high-quality sleep within a necessary timeframe (from nightfall to 1:40 AM) + good lifestyle habits. 9. Unobstructed meridians require: a pure heart. All seven emotions and six desires can disrupt the pure heart, thereby disturbing the normal functioning of the meridians. 10. Maintaining a healthy body requires not only “increasing income (boosting qi and blood)” but also “reducing expenditure (minimizing qi and blood loss).” 11. Excessive food intake does not increase qi and blood; instead, it becomes a burden of waste in the body, which in turn requires the consumption of qi and blood to clear it. The five organs and six bowels function as a qi and blood processing factory, with food as raw material; the processing capacity is limited, while food is unlimited, so the quantity of food must be controlled. 12. Appropriate exercise can help the circulation of qi and blood, but it also consumes qi and blood. The microcirculation of the human body should primarily rely on relaxation, which is essential for health. 13. The more waste in the body, the more qi and blood are needed to eliminate it. However, due to the increase in waste and blockage of blood vessels, qi and blood decrease, creating a vicious cycle, which is the mechanism of aging. Therefore, to maintain health and youth, one must: 1) Reduce internal waste; 2) Increase the smoothness of blood vessels and meridians; 3) Increase qi and blood within the body. 14. Rather than trusting medications or test results, trust your own feelings and your inherent self-regulating ability. However, this requires that you have attained enlightenment (wisdom) to discern all of this. 15. Health begins with regulating the heart’s nature. For your health, practice Buddhism. The joy gained from practicing Buddhism is the highest enjoyment in life. 16. For someone with chronic illness, only when qi and blood are sufficient (through the methods of replenishing qi and blood introduced here, and through meditation to open the qi mechanism) will the condition manifest. Therefore, practitioners often experience some “illness” phenomena when their skills reach a certain level. At this time, one must remain calm, stabilize the heart, and practice more quiet exercises to increase one’s qi and blood to quickly pass through this period. 17. Violating the principles of health preservation may not immediately lead to illness, but once it becomes a habit, it greatly increases the chances of falling ill. This is similar to traffic rules; violating them may not immediately cause an accident, but the danger is evident. 18. Why must one maintain a certain level of hunger and thirst for health preservation? This is the subtlety of “emptiness”. Daoism teaches that emptiness leads to spirituality. Just as humility leads to progress, complacency leads to regression, one must often maintain a state of “emptiness and spirituality” to remain alert and healthy. 19. To be healthy, one must have sufficient “qi” to “transform” the food consumed. Only then will waste not accumulate in the body, and there will be no excess food to release free “false fire” that harms the internal organs; this “false fire” in turn consumes your “qi”. Thus, in this sense, modern people often fall ill due to dietary indiscretion. 20. The heart is like a fan, controlling the wind. When the wind moves, the fire becomes vigorous; when the fire is vigorous, the water dries up; when the water dries up, the earth is damaged. 21. As the saying goes, “A sudden inspiration leads to a clever plan.” If one can truly comprehend this “mechanism”, then their understanding is awakened. Teachers teach, and doctors heal, essentially guiding you to open this “mechanism”. This “mechanism” is sometimes called the “key”. Of course, the effectiveness of this “mechanism” is conditional, just as hydrogen can only ignite and explode when it reaches a certain concentration. Remember, others’ roles are external causes; you are the true internal cause. 22. In fact, many true discoveries and inventions do not require so-called systematic book knowledge; on the contrary, a person who has not received any systematic education but possesses high insight and open-mindedness often truly realizes the truth. 23. The greatest taboo in life is chaos; when the heart is chaotic, it can disrupt external affairs and internally disturb qi and blood, leading to abnormality. All anger, fear, joy, worry, confusion, and doubt are chaos, the root of many diseases. Not only should one avoid chaos during illness, but also in daily life. 24. Excessive anger harms the liver, excessive indulgence harms the kidneys, excessive eating harms the spleen and stomach. Worry and overthinking harm the spleen, anger harms the liver, and excessive labor harms the spirit. 25. The onset of physical illness is always due to a weak heart, allowing external pathogens to invade. A weak heart and qi are often caused by disturbances in the heart and soul, leading to various forms of unease. Greed for food, victory, and pleasure can all lead to illness. When one cannot obtain what they desire, they become angry. Greed and anger can cause the heart to be agitated, qi to be hurried, the gallbladder to be startled, the liver to be overactive, the six meridians to tremble, and the five organs to boil, allowing external pathogens to invade; this is the cause of illness. 26. To seek longevity without illness, one must first eliminate disease. To eliminate disease, one must understand how to use qi. To understand how to use qi, one must first cultivate the heart. The method of cultivating the heart is to first regulate the mind. 27. Humans are treated by the qi of the five elements; thus, the physical body is primarily composed of qi. When qi is deficient, illness arises; when qi is stagnant, illness arises. To treat illness, one must first treat the qi. 28. Qi moves blood, and blood nourishes qi; they are one and the same. Prolonged viewing harms blood, prolonged lying harms qi, prolonged sitting harms flesh, prolonged standing harms bones, and prolonged walking harms tendons. Excessive emotions and desires can harm the original qi, and overactive fire can deplete true yang. 29. To treat diseases of the five organs, nothing is more important than replenishing qi. The kidneys are particularly urgent. Replenishing qi requires a calm heart; if the heart is agitated, the liver becomes overactive, causing all meridians to tremble and depleting true water. 30. When the heart is calm and the spirit unified, the patient’s faith is strong and focused; when the two hearts unite, they can govern all diseases with remarkable efficacy. 31. Human illnesses can be divided into two types: one is when the meridians are basically unobstructed but qi is insufficient, often manifesting as pain in various areas due to insufficient qi to transform food, leading to false fire (also known as empty fire) that wanders through the body’s meridians. When encountering a blockage, pain occurs in that area. Such individuals respond quickly to medications. The second type is when the meridians are obstructed, and qi has no place to reside. Externally, there may be no visible issues, but once discovered, it is a serious illness, and such individuals often respond slowly to medications or may not respond at all. The mechanism of disease is crucial. An arrow on the string must be released by activating this mechanism. Everything has a mechanism; only by triggering this mechanism can events occur. If this mechanism is not activated, no matter how many other conditions are present, events cannot be initiated. The mechanism is the key factor for events to happen. It is a point, not a surface. However, touching this point can mobilize the surface. Thus, the mechanism of disease is the most critical factor in the occurrence, development, and change of diseases (it can also be said that once the mechanism of disease opens, the symptoms will manifest, and one enters a vicious cycle of “illness”. Conversely, when the mechanism of life opens, one enters a virtuous cycle of recovery. In fact, the mechanism of disease and the mechanism of life are two aspects of the same thing, a pair of yin and yang. When the mechanism of disease opens, the mechanism of life closes, and when the mechanism of life opens, the mechanism of disease naturally begins to close. This is the dialectical method.) 32. The highest realm of TCM is health preservation, and the highest realm of health preservation is nurturing the heart. Therefore, in terms of health preservation, the lower practitioner nurtures the body, the middle practitioner nurtures qi, and the upper practitioner nurtures the heart. Observing a person is the same; observing the appearance is not as good as observing the qi, and observing the qi is not as good as observing the heart. 33. An unsettled heart and an anxious temperament are the root causes of illness and death. Therefore, the method of calming the heart is the first principle of health preservation. The heart can actively influence everything. When the heart is calm, qi is harmonious; when qi is harmonious, blood flows smoothly; when blood flows smoothly, essence is abundant, and the spirit is vigorous. A strong essence and spirit lead to a strong internal resistance, and illness will naturally resolve. Therefore, treating illness should primarily focus on calming the heart. 34. Wind, cold, yin, yang, heat, and dampness can all cause illness. If resistance is weak, they can easily invade. Those with weak bodies are more prone to illness; the wealthy have protective power, such as clothing, food, and shelter. The poor have resistance, such as abundant qi and a vigorous spirit, with thick pores that are not easily invaded. The wealthy often consume rich foods, harming the stomach and teeth. The poor often suffer from hunger and eat less diverse foods, thus avoiding intestinal diseases. The wealthy often indulge, leading to anger and frustration. The poor often labor, leading to fewer diseases. The wealthy do not create benefits but enjoy them; once they exhaust their fortune, they become poor. The poor can be frugal, which is a form of creating benefits, and when the fruit is ripe, they become wealthy. If the protective power of clothing, food, and shelter is strong, the resistance of essence, qi, and spirit will be weak. If the protective power is weak, the resistance will be strong. 35. After a major illness, it is crucial to avoid haircuts, foot baths, and showers. 36. To seek longevity without illness, one must strengthen the physical body. To strengthen the physical body, one must regulate essence, qi, and spirit. To regulate essence, qi, and spirit, one must reject disruptive thieves. To eliminate these thieves, one must first calm the heart. To seek to calm the heart, one must transform the three poisons of greed, anger, and ignorance. To transform these three poisons, one must learn to restrain the heart. However, merely speaking of restraint is of no benefit; one must seek enlightenment to avoid being foolish. To seek enlightenment, one must first seek tranquility. To seek tranquility, one must learn to meditate. 37. To be able to be tranquil is to be benevolent; with benevolence comes longevity, and true happiness comes with longevity. 38. A crucial principle of self-cultivation is simply two words: let go and turn back. Letting go of the butcher’s knife leads to instant Buddhahood; the sea of suffering is boundless, but turning back is the shore. As long as one lets go and turns back, the sick will recover instantly, and the confused will awaken immediately. This is the true essence of infinite longevity. 39. A person with a fatigued heart has a tired spirit and an overactive liver. Overworking the heart means it is too full and not empty. When the heart is full, it cannot accept the fire generated by the liver (wood). If the heart does not accept the fire generated by the liver, liver qi will accumulate and become excessive. The liver (wood) overcomes the spleen (earth), leading to digestive issues, insufficient nutrition, and restless sleep at night. The earth also overcomes water, resulting in kidney water depletion; when water is insufficient, fire becomes more vigorous, weakening the heart and leading to lung disease. The internal organs are interconnected; when one moves, all move; when one is ill, all are ill. The disturbance lies in the deluded heart, so treating illness requires calming the heart, and calming the heart requires quieting the delusions, which leads to clarity of heart, and health benefits from meditation. 40. Meditation is the method of calming the heart; when the heart is calm, the spirit is at peace; when the spirit is at peace, qi is abundant; when qi is abundant, blood is vigorous; when blood and qi flow smoothly, illnesses can be eliminated, deficiencies can be replenished, and sufficiencies can be increased. Current illnesses can be eliminated, and future illnesses can be prevented; this is the minor benefit. Furthermore, when the heart is calm, the spirit is clear; when the spirit is clear, one becomes clever. The tranquil person possesses many wonders, observing mechanisms and discerning patterns with exceptional agility, seeing the truth clearly, predicting events accurately, remaining unshaken in chaos, and not being confused by circumstances, thus achieving comprehensive understanding without subjective bias, leading to great mechanisms and great applications. 41. When a person is ill, the greatest taboo is to harbor anger. At this time, one must accept calmly, allowing the heart to stabilize. Then, gradually adjust, and health will quickly recover. A calm heart leads to smooth qi, and smooth qi leads to the elimination of illness. Otherwise, impatience will aggravate the liver qi, worsening the condition. When the heart is tranquil, the blood and qi throughout the body can function effectively. There are two types of hearts: the true heart and the deluded heart. The true heart is like water, while the deluded heart is like waves. Waves move with the wind; when the wind stops, the waves cease, but water remains still. Complete tranquility without thought is the state of the true heart. 42. Insomnia during the hour of the rat (11 PM to 1 AM) leads to kidney water depletion; the heart and kidneys are interconnected; when water is depleted, fire becomes vigorous, easily harming the spirit. 43. If thoughts arise while sleeping, do not turn and think on the pillow; this is the most depleting to the spirit. 44. The hour of noon belongs to the heart; at this time, one can meditate for a quarter of an hour, closing the eyes to nourish the heart’s qi. 45. Rising early during the hour of the tiger (3 AM to 5 AM) requires avoiding anger; otherwise, it will harm the lungs and damage the liver; please pay attention. 46. All endeavors in life are fundamentally rooted in the spirit, and the strength or weakness of the spirit relies entirely on the calmness and stability of the heart. A single chaotic thought can hinder all work. 47. Life is primarily governed by the circulation of blood and qi; qi stagnation can block blood flow, leading to toxic accumulations such as abscesses, lumps, cancers, and tumors, all due to the lack of circulation of blood and qi. Qi must flow smoothly, and blood must circulate freely. All diseases begin with qi stagnation; when qi is blocked internally, the liver is the first to suffer. The remedy lies in eliminating the root cause. The key to elimination has two aspects: first, find the root, which lies in the heart; when the heart is empty, everything can transform naturally. Second, use medications, stones, and massage to assist in the flow of blood and qi. 48. Healing and treating illnesses should not be rushed. Impatience fuels fire, and excessive fire depletes qi, which is counterproductive. Additionally, one should not be greedy; greed leads to inconsistency and impatience, especially since all diseases arise from greed; one should not be greedy to further increase suffering. 49. The heart belongs to fire, and the kidneys belong to water; the heart and kidneys are interconnected. Fire should descend, and water should rise; when water and fire harmonize, internal steam is generated. The movements of all body systems can lead to health. This can be observed on the tongue. A tongue without moisture is lifeless; hence, the character for “life” includes three dots of water added to the character for “tongue”. The tongue can report the depth of various internal ailments, determining life and death. 50. Self-rescue methods for major illnesses: 1. Do not fear death; firmly believe that this illness can not only be cured but that the body can also be exceptionally healthy, ensuring longevity. This is because the body possesses unique abilities; it is not mere empty consolation. 2. Believe that there is no need for medications or nutritional supplements; there are methods to eliminate illness and prolong life. 3. From today onward, I decide not to disturb my ill body; I will not think about how my illness is or how it is doing, whether good or bad; I will act as if I am a person without worries. 4. During this repair period, I will not think about work, nor will I regret lost time and work; I will focus entirely on this, otherwise, I will delay recovery. 51. The method of quiet nurturing: Sit (or lie) in bed, letting both body and mind relax completely, as if melting away, without using any effort, as if there is no body. Breathe naturally, and do not allow the heart to exert any effort; even a single thought is effort. Place the heart at the soles of the feet; this directs fire downward and water upward, allowing qi and blood to flow smoothly throughout the body. 52. The key to cultivation: tranquility and clarity; avoid forceful attempts to become a Buddha or ancestor; there is no other secret. Specific requirements: Do not use any part of the body with even a slight effort, including thoughts, breathing, and limbs. Achieve: eyes not observing, ears not hearing, nose not smelling, tongue not tasting, mouth not taking in, and heart not thinking. This is the only condition. If there are any thoughts, sounds, or sensations, it is using effort; even moving a finger is using effort. If breathing becomes slightly rough, it is also using effort. Soon, that breathing will naturally become smooth, as if it is not coming from the mouth or nose, but rather from the 84,000 pores of the body, either opening or closing. At this time, there is no self, no body, no qi, and no heart; the natural heart returns to its original state. This is known as directing fire back to the source, also called the harmony of water and fire, which is the ultimate method for treating all diseases. 53. Many people die for the sake of health preservation, accounting for one-third. What is the reason? It is because they are too attached to their bodies. For the sake of this stinky skin, they fear humiliation, fear being favored, fear losing, fear being deceived, and constantly look ahead and behind, living in fear and anxiety, worrying about gains and losses… Thus, their hearts shrink like walnuts, as if they have been gnawed by dogs repeatedly; how can they not die? The more one fears death, the faster they die. If you want to preserve health, you must not fear death. Only by not fearing death can you stay away from it. Those who truly do not fear death will not encounter tigers while walking; even if they do, they will not be eaten. In battle, they will not be harmed by swords and guns; even if they are, they will not be injured. Why? Because they do not take death seriously; if they do not fear death, death cannot find them. Health preservation is not the goal of cultivation, but those who cultivate have already seen through life and death, so they no longer fear death. Since they no longer fear death, it is no longer a problem. Once one passes the barrier of life and death, what else can be difficult? Therefore, cultivators can achieve longevity. Ironically, those who focus on longevity often die quickly. Longevity is not the goal of cultivation; it is merely a byproduct of cultivation. 54. The greatest illness is when a person is ill but does not realize it. How many people are aware that they are ill? 55. Those who stay up late online every night are fundamentally violating the principles of health preservation. This includes some so-called famous doctors. Moreover, their hearts are also calculating; how can such people take care of themselves, let alone treat others? 56. Do not be greedy for small gains, nor for large gains. The word “greed” contains disaster. Greed and the worry of gains and losses can lead to heart disease. Greed and the worry of gains and losses are manifestations of not understanding the natural way. 57. Do not constantly think about what to eat to nourish yin or what to eat to strengthen yang. Remember, exercise can generate yang; meditation can generate yin. Yin is the mother of yang, and yang is the function of yin. 58. When a person is deficient in qi, they should not blindly replenish qi, as this can affect health. If the deficiency is due to insufficient blood, blood should be replenished first, as blood is the mother of qi; otherwise, it will become a dry vessel that burns the internal organs. If the deficiency is due to stagnation, qi and blood can be increased together; this way, the effect of replenishing qi can be achieved. 59. The importance of the environment for health preservation is self-evident. This is why people can recover from chronic illnesses in the fresh air of deep mountains and forests. The subtle substances (negative ions) in deep mountains and forests can be absorbed into the body through deep breathing in a relaxed state, nourishing the five organs and six bowels, revitalizing the person. Another important point that most people do not know is that humans do not only breathe through the mouth and nose; every pore in the body can also breathe, and they are absorbing the essence of heaven and earth. 60. In a relaxed state, slow deep breathing allows one to experience the exchange of subtle qi between humans and the universe: during inhalation, while the lungs are inhaling, the entire body is expelling internal qi, releasing it to the universe; during exhalation, while the lungs are exhaling, the body is absorbing the subtle qi of heaven and earth through all the pores. This is likely what Laozi meant by “Between heaven and earth, it is like a bellows.” 61. There are two prohibitions for exercise: first, do not exercise when qi and blood are insufficient; second, do not exercise in a polluted environment. 62. The functions of exercise are twofold: first, to increase the speed of qi and blood circulation, promoting the expulsion of waste from the body; second, to open the skin’s pores, allowing the absorption of the essence of heaven and earth. 63. What is insight? What is wisdom? Insight and wisdom are about handling and viewing all things in the simplest way. However, some foolish people complicate simple matters. Complexity and simplicity are actually one and the same, two aspects of the same thing. Wise people see the simple side, while foolish people see the complex side. 64. Diseases that cannot be treated by humans must rely on divine intervention; diseases that cannot be treated by divine intervention must rely on Buddhist intervention. What is Buddhism? Buddhism is the heart. 65. Modern hospitals are similar to courts; they often issue death sentences to patients. In many cases, they sentence those who should not be sentenced to death. Why do I say this? Take cancer as an example; cancer is now equated with a death sentence in people’s minds. In fact, if we do not call it cancer, it leaves hope for the patient, equating to leaving them with a chance for life. Therefore, I say that many cancer patients die from fear, tortured by mental pressure, and also by hospitals. Once diagnosed with cancer, they can treat you however they want; if you survive, it is due to your good fortune; if you die, it is because you had cancer. In fact, there is no disease that cannot be treated; it is only a matter of whether your heart can let go. All diseases arise from the heart, and all diseases can be treated from the heart. As long as you are alive, you have a chance for recovery. Once you find this chance and treat accordingly, you will recover. 66. Today is a competitive era, disrupting all order. What is competition? Competition leads people into an endless world of greed. 67. According to the principle of yin and yang embracing each other, purity and turbidity attract each other. Therefore, when a person consumes pure substances, they will inevitably embrace the turbid substances within the body, thus expelling them. 68. The production of turbid substances is due to consuming unclean food, but more importantly, it is due to consuming excessive food, which the body cannot process, leading to food accumulation and waste. 69. Adapting to nature is the highest realm of health preservation. A person’s fate is fundamentally predetermined. What they should do, what they should not do, what they should eat, and what they should not eat; if they can follow their fate, they will be safe and sound. Insightful people will discover and know their fate, understanding what they should do and what they should not do. Therefore, health preservation is absolutely not simple imitation or following others. Do not envy others; find your own insight from within your heart. How can one discover whether they are following nature? It is very simple: if you are ill, uncomfortable, or uneasy, you are violating nature. To align with the external nature, one must also align with their internal fate; these two are indispensable. 70. Many people, upon hearing a doctor announce they have a serious illness, often display an innocent demeanor, hoping to use cutting, burning, or other external methods to eliminate the disease. However, do diseases really arise without reason? There is absolutely no such thing as “suddenly falling ill for no reason”. For example, with a cold, if patients were to reflect on themselves, they would usually admit that they had stayed up several nights in a row; some might say they were exposed to cold winds or rain; others might say they were under great work pressure, often experiencing headaches and insomnia. In fact, such phenomena are all factors leading to a cold. If patients had sufficient sensitivity and awareness, they could naturally achieve the goal of “preventing problems before they arise”. 71. What is true science? It is the principle of cause and effect. 72. One must not have a heart that fears loss or takes advantage of others. In other words, if you can endure loss, even if others want your life, you are willing to give it to them, and you do not seek to gain advantages at any time, then your heart can remain stable. Who in the world can achieve this? But the Buddha has achieved it. 73. Once people grasp the methods of health, they will truly enjoy the confidence of not having to worry about diseases; this feeling is wonderful, and I hope you can also have this confidence like us. 74. When knowledge is profound, the spirit is calm; when the heart is stable, qi is balanced. Therefore, for an enlightened person, observing another person is not a difficult task; this is also the result of the heart following the spirit. 75. The most difficult desires to overcome are the five desires: lust, wealth, food, and sleep. The mind must not die; otherwise, one cannot enter the Dao. 76. The beginning of all diseases arises from the invasion of wind pathogens. If the body’s qi is weak, the protective and nourishing systems are unbalanced, or if there is worry, fear, or excessive indulgence, true qi is depleted, allowing external pathogens to invade. 77. To treat diseases of the five organs, nothing is more important than replenishing qi. The kidneys are particularly urgent. Replenishing qi requires a calm heart; if the heart is agitated, the liver becomes overactive, causing all meridians to tremble and depleting true water. Heart is like a fan, controlling the wind. When the wind moves, the fire becomes vigorous; when the fire is vigorous, the water dries up; when the water dries up, the earth is damaged. 78. For doctors, when the heart is calm and the spirit is unified, the patient’s faith is strong and focused; when the two hearts unite, they can govern all diseases with remarkable efficacy. 79. To deal with stubborn diseases, one should not attack head-on but rather break through from other related aspects. For example, to treat stubborn kidney or liver diseases, one can achieve results by adjusting the lungs and spleen. 80. The principle of moderation is fundamental to health preservation. The qi and blood in the body are also a pair of yin and yang; blood is yin and represents the body, while qi is yang and represents function. Blood is the mother of qi, and qi is the commander of blood. Insufficient qi can lead to stagnation diseases such as tumors and thrombosis; excessive qi can lead to diseases like cerebral hemorrhage. Therefore, only with balanced qi and blood can one be healthy. 81. Only when one understands what is “natural” can they be considered enlightened. Knowing nature and being able to follow it makes one a divine person. Understanding yin and yang and following nature will surely lead one to become a great physician and virtuous person. 82. What is nature? Nature means that all things have yin and yang aspects, and all things must go through the processes of birth, growth, harvest, and storage. If you follow this process and use the principles of the five elements to adjust the balance of the patient, how can you not treat the illness? 83. Simplicity and complexity are a pair of yin and yang; the more complex a matter is, the more it can often be solved with the simplest method. Similarly, seemingly simple problems can often be difficult to solve; you may put in great effort and still not resolve them. This is like the interplay of hardness and softness; extreme softness can overcome hardness, while extreme hardness can be unyielding. Therefore, when solving problems, we should have this mindset: when encountering complex issues, seek simple solutions; when facing simple problems, do not overlook them; give them sufficient attention. Just as Chairman Mao said, “Strategically despise, tactically value.” This means to give little importance to the problem but to pay great attention to the process. 84. Let us see if this principle holds true in the world. How many people can eat and sleep according to nature? How many can follow nature? If you cannot follow it, why? Because it is too simple. Precisely because it is too simple, it is difficult to follow. This is dialectics. 85. What is balance? Balance is the mutual dependence and mutual restriction of yin and yang; if one side is excessive or deficient, balance is lost. Losing balance harms the original qi; maintaining a state of balance preserves the original qi, leading to slower aging. 86. The way of yin and yang is that the two opposing aspects depend on and transform into each other. If one aspect separates from the other and is no longer restricted by it, it is not far from disappearing. In today’s society, leaders often dislike restrictions, preferring to act independently, which leads to corruption and bribery; the results are predictable. Yin and yang are like this. In nature, the emergence of one thing always has factors that produce it, but at the same time, there will always be another factor to restrict it. This is the principle of the five elements generating and restraining each other, as well as the mutual dependence and restriction of yin and yang. Therefore, the principles of health preservation are the same; when you are ill, there is always a factor causing your illness, and there will also be a factor that restricts it, allowing your illness to disappear. Just as where poisonous snakes exist, there are always medicinal herbs nearby to counteract the poison. 87. What does it mean for a person to become complacent? It means they have lost control and the restrictions of yin; thus, their outcome is… Similarly, a person cannot remain in a state of depression; this means they have lost the restrictions of yang. 88. How can one possess great wisdom? Without a broad mind, how can there be great wisdom? 89. As the saying goes, “Live and learn.” Learning must be timely; at each age, one should learn what is appropriate for that stage; otherwise, it is not timely and does not follow nature. But look at our current education, from kindergarten to university; how much of it is what should be learned? In childhood, one should learn virtue and filial piety, then learn to read and write, and further learn how to do things. In youth, learn about good reproduction and family happiness. In middle age, learn the principles of health preservation. In old age, learn to let go of the mindset and enjoy the later years. Continuing education should focus on these things. 90. The relationship between emotions and diseases is very close; some diseases arise from emotions. If you treat them with medications, they will not improve. For such diseases, the one who ties the bell must untie it. The five emotions can cause illness, and the five emotions can also resolve illness. 
91. A very important principle of health preservation is not to fear death. Those who fear death have insufficient yang energy; with insufficient yang energy, the god of death will find you. This is what Daoism teaches; cultivators must possess a heroic spirit. Benevolence, wisdom, and courage are all indispensable. 92. When you understand knowledge to be very simple and straightforward, you have truly grasped its essence. If you still feel it is profound and unfathomable, you have not yet mastered its essence; you only see the dense leaves and not the roots. At this point, you are still in the stage of “having” and have not reached the realm of “nothingness”. Everything is inseparable from yin and yang; all things and matters are inseparable from yin and yang. The fundamental principle is yin and yang. Knowing one aspect encompasses all matters. 93. Concentrating the spirit and calming the qi leads to the forgetting of both self and objects. — This is the true essence of health preservation. 94. When the ruler is clear, the subjects are at peace; thus, health preservation leads to longevity, and one will not perish in this world, leading to great prosperity. When the ruler is unclear, the twelve officials are in danger, causing the way to be blocked and uncommunicative, leading to great harm; thus, health preservation leads to disaster, and the one who governs the world is in great danger; beware, beware! 95. The application of the five elements generating and restraining each other: Any disease caused by excessive five organs can be treated using the method of five elements restraining. Similarly, any disease caused by insufficient five elements can be resolved using the method of five elements generating. This is the fundamental principle of applying the five elements. 96. Modern people often focus their efforts on improving material life, and the consequences of this pursuit are frightening. One must understand that human desires for material things are endless. Once this desire is uncontrolled, what awaits us is endless suffering. In fact, the enjoyment brought by material things can also be achieved through the spirit; medications can treat diseases, and psychological therapy can also achieve the same. Therefore, spending a lifetime pursuing wealth is not as good as spending a lifetime cultivating a good mindset, allowing our spirit to reach a transcendent realm. 97. Once people grasp the principles of health, they will truly enjoy the confidence of not having to worry about diseases; this feeling is wonderful, and I hope we all can have this confidence. 98. Our bodies are intelligent organisms filled with “sentinels”: teeth, appendix, tonsils, etc. When our bodies exhibit abnormalities (usually “internal heat”), these sentinels immediately react to notify the brain. Wise individuals should adjust their mindset at this time, reflecting on themselves and calming down. However, what do modern Western doctors do? If you are in pain, they will remove everything. Now, there are even instruments invented; if you have allergic rhinitis and sneeze, they will burn the sensitive nerves in your nose, so you will not sneeze no matter how you stimulate it. The consequence of Western medicine is that we may end up removing our five organs and six bowels. 99. Remember, occasional diarrhea, sneezing, coughing, and fever are all signs of our body’s repair system at work; do not misuse medications at the first sign of these symptoms. 100. Many serious illnesses or terminal diseases have only one reason: hatred. When this hatred disappears, the illness will also vanish. The most difficult thing in this world to resolve is the continuous hatred; only when the unresolvable hatred is resolved can the incurable disease be treated.— END —
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