According to the interception, Guan Zhong first put forward the idea of solid essence. Huangdi Neijing also attaches great importance to the role of essence in life, arguing that essence is the foundation of human life, the basis of life activities and the key to longevity. The key to health preservation lies in abstinence and essence preservation. Yin essence is important in filling, then the human body nourishes, is full of energy, and is strong and long-lived. The premise of solid essence is to close the heart and correct the heart. Therefore, this school tries its best to regulate lust, prevent the waste of yin essence and advocate late marriage. Abstinence, conditioning seven emotions, etc. To maintain yin essence and prolong life.