There is a saying in Feng Shui that the heavenly heart is ten degrees. The so-called "Ten Degrees of Heavenly Mind" refers to drawing a straight line from left to right and back with the grave or house as the center to form a cross. The four directions of the cross are Ying Si, also known as the Four Beasts, namely Suzaku, Xuanwu, Qinglong and White Tiger.
Suzaku is in front of the hall, the main wealth.
Xuanwu in the rear is the backer and the master.
Zuo Qinglong and you Baihu are the right and left hands, and the relationship between the Lord and his friends and subordinates.