What is "God"? Chinese medicine believes that essence, qi and spirit are the three treasures of life. God is the overall external expression of human life activities, and also refers to spiritual consciousness activities. Huangdi Neijing said: "God is the essence of Shui Gu." In other words, God is based on essence, so it is also called spirit. Sufficient essence will make you energetic, while insufficient essence will make you mentally exhausted. God is the external expression of the whole human life activities, that is, human mental state and thinking activities. Ancient health care experts stressed: God is strong and will live long. The "strong spirit" here actually refers to a sound brain. Only when the brain and mind are sound can life activities, viscera coordination, limb movements and five senses be dominated, and the whole body is in a normal physiological state of yin and yang balance. Therefore, essence, qi and spirit are the basis of health and longevity, and the key to aftercare is to recuperate. Spirit is expressed through body movements, facial expressions and language breath. Moreover, the so-called spirit and essence of the ancients are basically consistent with the spiritual and psychological activities of modern people. Ancient Chinese thinkers all emphasized the important role of God in human life activities, and thought that "if you get it, you will be happy, and if you lose it, you will die". What is "nourishing the mind" for health preservation? Chinese medicine has a saying that "medicine tonic is not as good as food tonic, food tonic is not as good as intensive cultivation, and intensive cultivation is not as good as nourishing the mind". The so-called "nourishing the heart" means adjusting the spirit and balancing the mentality. Proper cultivation of the heart can make people feel peaceful and smooth, thus achieving the goal of health and longevity. "The law of life, raise the spirit." Traditional Chinese medicine believes that health preservation can be divided into "health preservation" and "fitness". If we only pay attention to health preservation and strengthen diet nutrition, but don't know and are not good at nourishing the heart, it is difficult to live a long and healthy life. Numerous examples from ancient times to the present show that people who are narrow-minded and haggle over personal gains and losses are rare, but people who are open-minded and optimistic can often enjoy a long life. "Take wine as the pulp, be unscrupulous, get drunk, enter the room, exhaust its essence, disperse its truth, I don't know how to fill it, from time to time, be quick with its heart, have fun, and live without restraint, so it will fail in half a hundred." The importance of "nourishing the spirit" Chinese medicine believes that "spirit" plays an important role in people's life. "Lingshu Tiannian" said: "If God is not there, he will die, and if God is there, he will live." "God" is the master of life. "On Su Wenling's Secret Book" said: "The heart is the official of the monarch, and the gods debut ... so the master is safe, healthy and long-lived." It shows that the mental state directly affects people's life activities and health maintenance. Therefore, TCM health care puts "nourishing the heart" in the first place. Throughout the ages, physicians, Taoists, and health preserving experts have attached great importance to psychological recuperation, psychotherapy, and health preserving. Shi Tianji, a famous doctor, wrote a song "Eliminating Diseases": "People may be born with weak qi and blood and be unhappy when they get sick. Be happy when you are sick, but you are sick. Heart disease will also take heart medicine, and the heart will be unhappy and empty. Come and sing my happy song, this is the elixir of life. " God can only gain, not lose, only be safe, not chaotic. If you hurt your mind, it will lead to mental decline. If you fail, you will forget, lose sleep, dream more and get upset. Distraction leads to madness and even fainting. Those who soothe the nerves have moderate emotions. Happiness, anger, worry, thinking, sadness, fear and shock have their own statutes, and enough is enough. "Love hurts the liver, anger hurts the spleen, sadness hurts the lungs, and fear hurts the kidneys." The five internal organs are lax and the mind is weak, leading to various diseases. Modern medicine has also confirmed that 50% ~ 80% of human diseases are caused by mental stress, such as hypertension, tachycardia and neurasthenia. In short, Chinese medicine in the motherland pays attention to health and spirit. God's charge and consumption are related to people's health and longevity, and keeping in good health requires nourishing the spirit. If people can follow the old adage, Xiu De, cultivate their sexuality, cultivate their feelings and concentrate on their brains, they can enjoy a long life.