Timing and Treasure Source was written by Gong Tingxian, a great doctor in Ming Dynasty. As for the content of the book, Gong said: "It was taken from the different awards of famous princes, the treasures of the inner government, the attack of doctors in the space, and the secret biography of foreigners, which were published and engraved by predecessors without mutual investigation." The book * * * consists of ten volumes, covering the viscera and meridians, diagnostic methods, therapeutic principles, drugs, prescriptions, folk remedies, qigong, first aid, dietotherapy and other intensive knowledge. It is a wonderful book of medical skills that was once kept secret by the inner government. The title of "Shou Shi Bao Yuan" fully embodies Gong's concept of medical health care as the champion of medical forest: a person is endowed with vitality, with a divine official inside, full of righteousness, and all diseases will occur if he is not allowed. Today's fallacy is to protect the cloudless person, that is, to protect his Yuan God, so that he will always be the master of the whole body, protect his vitality, and let him always be the assistant of the whole body, and then God will not be raped because of all kinds of qi, and there will be no reason for all kinds of diseases. In this way, we can achieve the goal of making people in the world live a long and healthy life. Therefore, Gong divided the book "Shoushi Baoyuan" into ten volumes, covering viscera, meridians, diagnostic methods, treatment principles, medicinal properties, diseases and syndromes, prescriptions, remedies, first aid, qigong, dietotherapy, health preservation, miscellaneous diseases treatment, moxibustion and so on. Most notably, Gong also provided the formulas and usage of Buzhong Yiqi Decoction, Shiquan Dabu Decoction and Liuwei Dihuang Pill recognized by later generations. It can be considered that "Shou Shi Bao Yuan" is a family practical palace medical care encyclopedia, and it is a book that combines the treasures of the inner government, the troubles of the world and the secrets of foreign countries. Gong's main health-preserving thoughts are: consolidating kidney qi and preserving capital; Conditioning the spleen and stomach, nourishing the day after tomorrow; Diet focuses on moderation, and qi and blood are expensive in circulation; In addition, it also attaches great importance to atrioventricular health.