What is a white tiger and a green dragon?

Qinglong, originally the oriental god in Han mythology, is one of the seven-star kings and four elephants in Taoism. Twenty-eight lodging houses, and seven lodging houses in the East (Jiao, Kang, Bian, Fang, Xin, Wei and Fan) have the image of dragons, which are located in the East, belong to wood and are blue in color, collectively called Qinglong, also known as Black Dragon.

The white tiger, originally a western god in Han mythology, is one of the seven stars and four elephants in Taoism. The seven western lodgings (Kui, Lou, Stomach, Ang, Bi, tapir and Shen) in the twenty-eight lodgings are elephant tigers, located in the west, belonging to gold and white in color, which are collectively called white tigers.

If there is any other meaning! Then ~ ~