I have a big tree, and people call it a tree: this sentence comes from Zhuangzi's Happy Travel. It turns out that Keiko said that she had an old tree, which was big and useless, alluding to Zhuangzi's theory and had no practical use. Zhuangzi answered and said to him, even if it can't be used as firewood, it is very useful to put it in the wasteland for people to enjoy the cool. In other words, Zhuangzi believes that everything happens for a reason. It may not be practical in the eyes of ordinary people, but it is useful to change the angle in another place. Besides, it is natural. Just like orchids in the valley, flowers bloom and fall when no one comes to enjoy them. This is a typical Taoist natural inaction.

Zhou Jiang is between material and immaterial: from Zhuangzi Sambucus. Some people died because of "talent", while others died because of "lack of talent". Therefore, the most important thing in life is to live between "talent and incompetence" and "usefulness" and "uselessness". This is somewhat similar to the Confucian doctrine of the mean, emphasizing a balance and degree.