Mountain, medicine, physiognomy, life and divination are called the five techniques of metaphysics. "Mountain" consists of three parts: mysterious point, health preservation and Xiu Mi, which is the secret of nourishing the heart and body. Medicine includes three parts: prescription, acupuncture and psychotherapy; "phase" has two parts: "human phase" and "ground phase"; "Destiny" is a method to judge people's fate through the relationship between time and space, and its important methods are: "astrology" and "stem branch"; The technique of divination has a long history, such as the number of plum blossoms, the number of family changes, the number of gods in Liu Ren, the number of gods in Taiyi and Daoism.