"There are fish in the north, named Kun" expresses the law of conforming to nature. According to the relevant information inquired, this poem comes from Zhuang Zhou's "You Have Fish in the North". Poem excerpt: There is a kind of fish named Kun in the north. Kunda, thousands of miles away. There is a kind of fish called Kun, which grows in the far north of the machine. It tells us that everything is useful, so don't worry about inaction, mainly because of different methods, different times and different environments, and playing with the naturalness of things. Obey the laws of nature.