Traditional Chinese medicine originated from the theory of Yin and Yang in the Book of Changes. Our ancient ancestors found through observation that everything in the universe has two attributes, which complement each other and are indispensable, and never appear alone. There are sun and moon in the sky, and people are divided into men and women. Belongs to the human body, with yang outside and yin inside; The back is yang and the fu-organs are yin; The upper part is yang and the lower part is yin; Only by reconciling the cold and heat in the human body can we maintain a normal body temperature and not get sick.

During the Warring States period, there was a prosperous scene of "a hundred schools of thought contend" in culture. The predecessors of traditional Chinese medicine used the advantages of a hundred schools of thought to treat diseases, and applied astronomical phenomena, political and military phenomena, humanistic phenomena and other disciplines to treatment theories and methods, and the treatment effect made remarkable progress. During this period, the classic Huangdi Neijing, which describes the theory and treatment of traditional Chinese medicine, appeared from the mouth of the ancient Huangdi.

Later, famous doctors in all previous dynasties learned the basics of traditional Chinese medicine from Huangdi Neijing, combined with the characteristics of the times, summed up their treatment experience and left tens of thousands of written materials.

Traditional Chinese medicine comes from the Book of Changes, and the Book of Changes comes from observation. Generally speaking, observation has promoted the development of TCM theory. It is the experience summarized by countless Chinese medicine predecessors through observation, and it is the condensation of painstaking efforts. It is an authentic materialistic theory, and it is by no means a gift from immortal emperors and aliens.

Huangdi Neijing pointed out that a qualified Chinese medicine practitioner should be kind-hearted, understand astronomy, geography and personnel, study and summarize the experience and lessons of predecessors, and master all necessary Chinese medicine theories in order to make a diagnosis and choose appropriate treatment methods.

Therefore, if you want to learn Chinese medicine theory well, you must study all kinds of knowledge hard and make a good theoretical reserve. First, you should establish a firm materialistic dialectical view, think more when encountering problems, learn to make analogies, and extrapolate from the big to the small (guess, well-founded, reasonable speculation). First, you must make clear the theory of Yin and Yang and the theory of Five Elements with a scientific attitude, and lay a good theoretical foundation from Huangdi Neijing. Read and think repeatedly, guess the inner meaning from the surface of the text, and then look back to find that I finally got started. After reading Huangdi Neijing by myself, there is a problem that I can't figure out. In fact, when I was dreaming, someone told me the answer. When I woke up, I wrote it down in my notebook. Maybe I can really communicate with the ancients. Perhaps this has something to do with the space theory put forward in the theory of relativity. This is what we often call the "sixth sense".