What is the special ending of the four words?

Usually, the left green dragon and the right white tiger represent the left and right positions, not the real green dragon and white tiger. Qinglong represents the East and White Tiger represents the West.

In addition to the four spirits in Taoism, including Qinglong White Tiger, when Feng Shui masters explore the cemetery, the terrain protruding from the left and right sides in front of the terrain can be used as the tomb, and they all have unique names, called Zuo Qinglong and Right White Tiger, which means their guards. The ancients thought: "The most ideal place for geomantic omen should be: Zuo Qinglong, You Baihu, Suzaku in front, Xuanwu in the back." That is: there is a name of Qinglong in Qushui in the east of the house; There is a section of avenue called White Tiger in the west. There is a clear pool for Suzaku in the south; There is a hill in the north, which is basalt.