Geomantic omen is a mysterious art with a long history in the Chinese nation, and it is often called "geomancy" academically. The core idea of Feng Shui is the harmony between man and nature, so as to achieve the unity of man and nature. Early geomantic omen is mainly about the methods and principles of the location, orientation and construction of palaces, houses, villages and cemeteries, and it is a kind of metaphysics to choose suitable places.