Wang Xuan has seen similar records in the "Huangdi Neijing": the ancient people, the law is based on yin and yang, and the harmony is based on the number of spells, so they can have both form and spirit.

In ancient times, in the mountains and wilds, if there was a stranger with one arm subduing a tiger, most of them would be awed and worshiped by the ancestors.

As time goes by, the stories that have been circulated may become "out of shape" and gradually become myths.