Feng Shui is a science used by ancient sages to study astronomy, geography and human health. Its core is the optimization and combination of aura. Feng shui is a cultural phenomenon that has been inherited from ancient times to the present. It is a technique for selecting good luck and avoiding evil, a widely circulated folk custom, a knowledge about the environment and people, and a synthesis of theory and practice. Feng shui can be divided into two parts: the Yang house and the Yin house. The Yang house is the place where living people live and activities, and the Yin house is the tomb of the dead. Feng Shui theory can be divided into situation school and Liqi school. The former focuses on the theory of good and bad luck based on the situation of mountains and rivers, while the latter focuses on the theory of good and bad luck based on yin and yang and hexagrams. The core of Feng Shui is "anger". Its concept is very complex, involving dragon veins, bright halls, acupuncture points, rivers, directions, etc. It has many taboos and is particular about time, direction, and location.