From the Book of Changes, "Tian Xingjian, a gentleman strives for self-improvement; The terrain is Kun, and the gentleman carries things with morality. "

Heaven is endless and endless, and a gentleman should strive for self-improvement like heaven; The truth of the earth lies in its vast expanse. A gentleman should be as virtuous and gentle as the earth, and contain everything in the world with a broad mind.

Taoist culture advocates exploring, understanding and adapting to nature, and also advocates learning and applying magical knowledge in nature to a certain extent.

The spirit of heaven and earth is undoubtedly an important part of Taoist thought.