Because we "live facing the south", Feng Shui often uses green dragon, white tiger, red bird, and Xuanwu to represent the direction. For example, "The Book of Burial" says: "The left is the green dragon, the right is the white tiger, the front is the red bird, and the back is the Xuanwu." "Ten Books on Yangzhai" says: "Any house with running water on the left is called a green dragon; a long road on the right is called a green dragon." The white tiger; the sweat pool in front, is called Zhuque; the hills behind are called Xuanwu, which is the most precious place." Therefore, Qinglong, White Tiger, Zhuque, and Xuanwu became the names of the four gods respected in Feng Shui.
There is a fixed saying about the location of Qinglong and Baihu Mountains, that is, Qinglong is in the east and Baihu is in the west. However, Feng Shui only has the theory of green dragon and white tiger, and their positions are not fixed. That is to say, the green dragon is often called Zuofu, Zuozuo, etc., and the white tiger is Youbi, right wing, etc.
The four gods such as Qinglong and Baihu are directional gods, and each performs a certain duty to protect cities, towns, and houses. Those who request the following can be called "Four Gods" or "Four Spirits". The conditions are "Xuanwu bows his head, Suzaku flies and dances, Qinglong meanders, and White Tiger bends down." That is, the peaks in the direction of Xuanwu lower their heads, the mountains in the direction of Suzaku should sing and dance, and the mountains of Qinglong on the left should be undulating. The mountain shape of the white tiger on the right should lie down and be supple. Such an environment is a "feng shui treasure land".
The Four Spirits Land is an environmental pattern that exists in any Feng Shui space. Whether it is advisable depends on whether it conforms to the "Xuanwu bows its head, the red bird dances, the green dragon meanders, and the white tiger tamely bows" "Principle. This can be said to be a landscape model that is influenced by the astronomical part of traditional Chinese philosophy and traditional Chinese feudal etiquette.