The five organs are collections, representing Yin.The bowels are part of the digestive system, representing Yang. In this context, Yin Wood refers to the liver (Gan), Yang Wood refers to the gallbladder (Dan), Yin Fire refers to the heart (Xin), and Yang Fire refers to the small intestine (Xiao Chang). Fire has two aspects: the heart and the small intestine. The spleen (Pi) represents Earth and is Yin, while the stomach (Wei) is Yang Earth. The lungs (Fei) are Yin organs, while the large intestine (Da Chang) is Yang. Water has both Yang Water and Yin Water.
When we talk about organs, we refer to Yin, and when we talk about bowels, we refer to Yang. Therefore, the kidneys (Shen) are Yin, while Yang Water refers to the bladder (Pang Guang). The codes have their significance; let me give you an example. Why does Traditional Chinese Medicine (TCM) define the heart as fire? Because the heart beats continuously, generating heat. Western medicine does not view it this way; they look for structural problems such as valve insufficiency, arrhythmia, myocardial infarction, and arterial sclerosis. Western medicine focuses on the physical form, which is merely the shape without the spirit. It may seem detailed, but it only addresses the form, lacking the spirit. The heart beats continuously, over a hundred thousand times a day; think about it, does the heart not generate heat? Since it generates heat, we can only use ‘fire’ to describe it, right? Therefore, the source of body temperature comes from the heart, as the heart’s continuous beating circulates throughout the body. Western medicine only understands the aftermath but not the source; they know the body temperature is 98 degrees Fahrenheit but do not understand how it is generated—it comes from the heart. The small intestine is Yang Fire because it is part of the digestive system. Food enters the stomach (Wei) and then the small intestine, where it is digested. Why is the small intestine also defined as fire? Because the heart and small intestine are interrelated, this relationship is called the ‘interior-exterior relationship’ (Biao Li Guan Xi).In TCM, when we talk about the exterior, we refer to the bowels, and when we talk about the interior, we refer to the organs. Both the heart and small intestine are defined as fire; the small intestine is considered the second heart. The heat generated by the heart should ideally rise, as you have heard of hot air balloons rising, but not cold air balloons! Therefore, the natural tendency of heat is to rise, but if it only rises, it can lead to overheating, resulting in a high fever that could be fatal! Thus, the lungs, which represent metal (Jin) in the Five Elements, were created to balance this. Fire overcomes metal, and they mutually restrain each other.
The lungs are like the sky, which is cold. If we consider the heart as the engine, the lungs are the water tank. If the lungs only function for breathing, that would be too simplistic!You need to understand the balance between the lungs and the heart; the normal function of the lungs allows heat to descend. Practicing Qi (Qi Gong) helps direct Qi downwards, with the Dantian being the meeting point of the small intestine, allowing Qi to flow downwards. Therefore, the temperature of the small intestine becomes very hot. The original source of heat comes from the heart. What does it mean to be a normal person? In clinical practice, I often ask patients, who told you that you have liver disease? They reply, a liver disease specialist. The signs outside are all specialists, while I am a health doctor. TCM and Western medicine are opposites; Western medicine complicates diseases, while TCM seeks to understand what a normal person is. If you are trained to look for diseases, you may search for a long time without finding a solution. If you are trained by me, you will immediately recognize what is abnormal!TCM does not require you to read many books; rather, you need to ‘understand’—understanding is the most important! I aim to help you recognize what a normal person is. The heat from the heart directs down to the small intestine, so in a normal person, the heart and small intestine operate at the same speed, temperature, and pressure. Therefore, TCM is a physical medicine. Einstein was a master of physics, yet he never traveled to space. Landing on the moon was done by Armstrong, right? His office was small, and with just a blackboard and chalk, he could calculate black holes based on data received from NASA, proving Einstein was correct.TCM is also a physical medicine; it emphasizes time, speed, temperature, and pressure. You do not need to visit a black hole to calculate it. TCM operates according to time, speed, temperature, and pressure; your body is a small universe. This is TCM, which allows us to see the inside from the outside. The small intestine generates heat, allowing food to be digested. The small intestine is quite intelligent; it digests food. If you remove the small intestine, will it still digest food? Once it loses temperature, it will no longer digest. This is how a normal person functions. Therefore, the small intestine is defined as fire; after digestion, food enters the large intestine, which extracts water from the food. Try eating pig intestines; can the large intestine intelligently extract water from the food? The large intestine surrounds the small intestine; the small intestine is fire, and water flows above it while fire burns below. The heat from the large intestine vaporizes the water. This vapor can then rise through the intestinal wall, and the large intestine is interrelated with the lungs; the water returns to the lungs, transforming into normal body fluids, while the waste is expelled. This process must be completed within twenty-four hours; this is a basic concept.
Gradually, we will delve deeper into the Huangdi Neijing (Yellow Emperor’s Classic of Internal Medicine). Why can TCM treat cancer? It is simple; you have heard of people dying from breast cancer, lung cancer, lymphatic cancer, liver cancer, but have you ever heard of someone dying from heart cancer? People only die from heart disease, not heart cancer. The heart does not get cancer because it is very hot; cancer cells passing through the heart are like moths to a flame. If the entire body were as hot as the heart, cancer cells would cease to exist. The human body is very hot; how can we prove this? In winter, if you exhale and it is not white vapor, then you are an alien, not from Earth. Everyone has Qi, which is hot; in TCM, the concept of hot Qi is vapor. This is a simple example I provide. For instance, water nourishes wood; the bladder is in front of the small intestine, and the bladder is here, while the small intestine is here, where the kidneys first vaporize, and in the small intestine, it vaporizes a second time. After the Huangdi Neijing, we will discuss in more detail. The small intestine is very hot, representing fire; when the bladder has 400CC of urine, it stretches the bladder, causing it to rise like a hot air balloon. When it is not filled to 400CC, we do not feel the urge to urinate. Once it reaches 400CC, we urgently need to go to the bathroom. When urine is expelled, the heat from the bladder allows for speed, force, and pressure to expel the urine; during the vaporization process in the bladder, it is the first distillation, and during the second vaporization, the turbid water is expelled. The clean water is sent to the liver, which receives the clean water (water nourishes wood), allowing it to eliminate toxins and then pass it to the gallbladder to be transformed into bile. The human body is complex; if we do not use this diagram to represent it, there is no other diagram that can represent it. What I just explained is so complex, yet we can simplify it to the point where it cannot be simplified further. In reality, it cannot be replaced; it must be represented by this symbol.
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