Sperm is the essence that constitutes the human body and maintains its vital activities, and has the functions of reproduction, growth and development, production of marrow and blood, nourishment of the internal organs, and the transformation of the spirit. Reproductive sperm is the original material from which life originates, and through male and female fertilization, a new living individual can be produced. The innate sperm and after the metabolism of the internal organs of the acquired sperm together hidden in the kidney, composed of the kidney in the essence, with the kidney in the essence of continuous fullness, the form gradually developed and matured, to a certain age will produce a substance called “day sap”. The “heavenly sap” has the function of promoting the development of the human body and enabling it to have the ability to reproduce, so that the new individual has the ability to reproduce. Thus, the kidney essence not only produces the substance called reproductive essence, but also produces kidney energy to promote reproduction. This genetic material of life given to offspring is the “innate essence” of new life. If the kidney essence is sufficient, the fertility will be strong; if it is insufficient, the fertility will be affected. Therefore, supplementing the kidney and filling the sperm is an important clinical treatment for infertility and other low reproductive functions. Essence is the basic substance of the human body and the material basis of human life activities. The Jin Kui Zhen Shu said, “The essence is the essence of the body.” The kidneys store essence, which can transform into qi, and the qi transformed by kidney essence is called “kidney qi”, which is the master of human growth and development and reproductive ability. From early childhood, the essence of the kidney gradually becomes abundant, and there is a change of “longer teeth and hair”; at puberty, the essence of the kidney becomes further abundant, producing the “heavenly sap” that promotes the maturation of sexual functions, so that men produce sperm and women have menstruation and ovulation on schedule. In old age, the essence of the kidney gradually decreases, the sexual function and reproductive capacity then decreases or even disappears, and the body also tends to age. Su Wen? Shanggu Tianzhen said: “When a woman is seven years old, her kidney energy is strong and her teeth are longer. Two seven and heavenly sap to, any vein through, Tai Chong vein Sheng, menstruation to time down, so there are children …… seven or eight, liver qi failure, tendons can not move. Eighty-eight, the sky is exhausted, less essence, kidney failure, the form are extreme, then the teeth hair go.” This scripture fully illustrates that the kidney of the essence of the prosperity and decline of the human growth and development and reproductive function plays a decisive role. 2, to defend against external evil The essence is the main energy of the human body and has the function of defending against external evil and saving people from diseases. Therefore, if the essence is abundant, the external guard is tightly secured and less susceptible to evil; on the contrary, if the essence is deficient, the external guard function is not ensured and the Yang Qi is not solidly secured, so it will be easily invaded by external evil. In short, if the essence is abundant, the vitality is strong and can adapt to the changes in the external environment and resist the influence of various adverse factors; if the essence is deficient, the vitality is weakened and the ability to adapt and resist diseases will be reduced accordingly, making it easy to produce pathological changes. Therefore, the Su Wen? Jin Kui Zhen Rui said: “The essence of the body is also the essence of the body. Therefore, those who hide in the essence will not be sick and warm in spring.” We always hear that a certain person died because of a cold, we feel very strange, in fact, this cold is the human body is a manifestation of the lack of vital energy, the cold is not fatal, but the cold caused by other diseases can be very serious, or even fatal. I once met a 60-year-old Chinese American who died from a cold that caused other illnesses. He had been in the acting industry, surrounded by beautiful women, and was very indiscreet in this area when he was young. As a result, he suffered from microcephaly and kidney disease in his 50s. The brain marrow is the high convergence of the essence of the whole body, the brain is the sea of marrow, the brain marrow atrophy is easy to dementia. When the cerebellum is atrophied, the movement is disordered. When I first met him, he came out of the hotel, pushing a cart, and the waiter supported him, moving step by step. This is a very typical manifestation of microcephaly, walking unsteadily. His second disease was kidney qi failure, and his urine protein and blood creatinine were both over the limit. At that time, the color of the kidney’s original collection was already visible on the face, the face was black and yellow, and the feet were particularly cold, with a foul smell in the mouth. This is the sign of “fire on water”, the “No” trigram. The kidney energy is already very weak. Usually when a doctor sees a patient, he or she will consider whether to treat him or her according to his or her medical ability. This patient has already shown the sign of “great deficiency of kidney qi”, the foundation of life has been shaken and it is difficult to return to heaven. Su Wen? Yin and Yang Ying Xiang Daxue said: “The year 40 and Yin Qi since half also, living decay.” Even if a person uses normally, after 40 years old, the kidney essence is automatically damaged by more than half. What’s more, he had such experience and background, and all kinds of performance were not particularly good. At that time, he was given a piece of advice, urging that he must prevent colds. Xu Shuwei, a medical doctor of the Song Dynasty, said, “The old fear typhoid less afraid of labor, typhoid specializes in the death of the lower deficiency people.” Typhoid is a fatal blow to those who have a deficiency of the liver and kidney in the lower jiao. In the eyes of Chinese medicine, the luck of each year is different. In Chinese medicine, there is a special study called “Five Luck and Six Qi”, “Five Luck” is the five elements of the sky, “Six Qi” is the six Qi of the earth, the combination of the five Luck and six Qi, each year’s stem and branch asterisks are different This kind of study has been handed down from ancient times to the present. From the five movements and six qi to project, 2007 is the year of Dinghai, Hai is the sympathetic yin wind wood, Ding nonnya into wood, wood gas is not enough, Sihai and is the sympathetic yin wind. Like this year, once the spring yang steamed up, the kidney essence of people who have a cold is easy to uproot the kidney root, this person water and fire a separation, the situation is not good. As a result, the following spring in March and April, this patient got a cold, and a typhoid cold, which triggered a lung infection and eventually led to death. 3, growth and development The essence in the kidneys has the role of promoting human growth and development. After birth, as the essence in the kidney continues to flourish, the human body continues to grow and develop until maturity, and then as the essence in the kidney continues to decline, the human body continues to age. Thus, with the changes in the strength and weakness of the essence, the human body shows the life pattern of birth, growth, strength, old age, and already. If the kidney essence is abundant, the human body will grow and develop normally; if the kidney essence is insufficient, the growth and development of young people will be slow and stunted, or children will have five soft and five late lesions. The term “five softnesses” refers to the five growth disorders of children within five or six years of age: soft head, soft neck, soft hands and feet, soft muscles, and soft mouth. It is also known as flaccid paralysis. According to the book “Summary of Infant Protection” written by Xue Kui (1368-1644), the five soft diseases in children are mostly due to congenital deficiency of essence, loss of liver and kidney, deficiency of qi and blood, and impotence and weakness of tendons, bones and muscles; or deficient in the regulation of the latter, and loss of nourishment after illness, resulting in weakness of the spleen and stomach, no source of qi and blood production, and loss of nourishment of tendons, bones and muscles. In general, the child’s whole body muscles or some of them are weak and impotent; if the head is soft, the head cannot be lifted, or it cannot be lifted high, or it cannot be lifted long; if the mouth is soft, the tongue is weak, or it cannot chew; if the hands are soft, the hands cannot be held and lifted, or they cannot be held tightly; if the feet are soft, the feet cannot stand or walk, or they cannot stand long, or they cannot walk far. If only one side of the hands and feet or one limb is impotent, but the intelligence is still good, it is still a mild evidence; if you see the head tilted, can not lift, look dull, tongue often stretched out, saliva can not be stopped, the prognosis is not good. The so-called five delays refer to the delay in standing, walking, hair, teeth and speech, which are diseases of delayed growth and development of children. Generally speaking, children who cannot stand or walk at the age of 2~3 years old are suffering from standing delay and walking delay; hairless or less hair at birth, and hair is still sparse and difficult to grow with age is suffering from hair delay; teeth are not yet emerged or very little emerged at that time is suffering from tooth delay; 1~2 years old cannot speak is suffering from speech delay. In the fourth year of the Qianlong era (1739) of the Qing Dynasty, the medical textbook compiled by Wu Qian, a doctor in charge of the medical profession, entitled “The Golden Book of Medicine? It is pointed out in the book “The Essentials of the Heart Method of the Early Childhood Section” that “the evidence of five delays in children is mostly due to the weakness of the parents’ qi and blood and congenital deficiencies, resulting in the child being born with weak tendons and bones, difficulty in walking, not growing teeth quickly, and not being able to sit steadily, all due to the lack of kidney qi.” In children with five delays, the tendons and bones are weak, the development is delayed, the hair is sparse, the color is unattractive, and the sitting up, standing, walking, teeth and speech are significantly later than those of normal children of the same age, often accompanied by mental retardation. The cause of the five delays in children is the congenital deficiency of fetal endowment, liver and kidney deficiency, and the loss of nourishment and weakness of qi and blood in later life. The kidney is the master of bone and marrow, which is the basis of growth and development; the teeth are the remainder of the bone and are supported by the marrow; the liver is the master of tendons, which bind the bone and move the pivot. If the liver and kidneys are deficient in qi, the bones will be weak and the tendons will be impotent, so the evidence of late standing, late walking and late teeth will be seen. Language is a manifestation of wisdom and is the master of the heart. If the heart is deficient in qi, the intellect is not developed and the language is slow. If the kidney is not full and the blood is deficient, the hair will be slow. The five softnesses and the five delays are seen together in the clinical symptoms, but with different emphasis. The five softnesses are characterized by impotence and weakness, while the five delays are characterized by delayed development. 4. The kidney collects essence, and essence produces marrow, which is divided into brain marrow and bone marrow. The kidney is the main reservoir of essence, which generates marrow, and marrow is connected to the brain, which is the sea of marrow. The brain marrow is related to the limbs, ears, eyes and mental activities. Ling Shu? If there is a surplus of marrow, the brain will be light and strong, and the marrow will be excessive; if there is a deficiency of marrow, the brain will turn to tinnitus, the shins will be sore and dizzy, the eyes will see nothing, and the mind will be lazy and restless. Su Wen? Linglan secret dian said: “The kidney, the official of the strong, the trick out of it.” (Su Wen? (Pulse to the essence of the theory) said: “The head, the essence of the House, the head to see deep, the spirit will take away.” All illustrate the kidney essence is sufficient, the bones are strong, the bone marrow is full, the action is robust and strong; kidney essence deficiency, the brain marrow is not enough, tiredness and lack of energy. Brain marrow can nourish the brain, kidney essence is sufficient, so the brain is full of marrow, it is clear consciousness, sensitive thinking, clear language. Bone depends on bone marrow to nourish, kidney essence is sufficient, so the bone marrow is full, the bones are strong and powerful, light and quick movement. The teeth are the remainder of the bones, and the teeth also depend on the marrow produced by the kidney essence to nourish them. If the kidney essence is sufficient, the teeth are strong and shiny. If the kidney essence is deficient and cannot produce marrow, the bones will lose nourishment and the teeth will be loose or even fall off; if the marrow is insufficient, the head will be dizzy and tired and the intellect will be diminished.