Skillful hands know how to cure cattle is an old idiom in China, which comes from Zhuangzi, a health care master. Moral: Metaphor, after repeated practice, has mastered the objective laws of things, doing things with ease and using them freely. ?

Self-knowledge is an allegorical story written by Zhuangzi (Zhuang Zhou), a representative of Taoism.

It means that after repeated practice, you have mastered the objective laws of things and can use them with ease. ?

The author's original intention is to use it to explain the way of keeping in good health, thus revealing the truth that people should conform to the laws of nature. The original meaning of this idiom is that a chef named Ding dissected the whole cow.

Metaphor after repeated practice, grasp the objective laws of things, do things with ease and use them freely.