What does carving a boat for a sword tell us?

Carving a boat for a sword tells us the following:

The objective reality is constantly developing and changing. People's ideological understanding does not conform to objective reality, and they will not succeed in doing things. If we regard the old rules and regulations as a magic weapon to solve new problems, we should also make jokes. This story is a wonderful irony for those who are rigid in thinking and stick to the rules and can't see the development and changes of things.

The story tells us that we can't just rely on subjective will, we can't take it for granted, and we should handle it flexibly according to changes in objective conditions. We also usually use this idiom to describe those who stick to the rules, stick to the rules and stick to their own opinions.

Carve a boat to find the source of the sword;

Some Chu people waded in the river, and their swords fell from the boat into the water. They signed their names on their boat and said, "My sword fell off the boat." The ship stopped at the destination, and the Chu people jumped into the water from the marked place to find the sword. The boat works, but not the sword. If you want a sword, isn't it confusing? (Lu Chunqiu Cha Jin by Lv Buwei in the Warring States Period) Later generations refined the idiom "Carving a boat for a sword".

Refer to the above? Baidu encyclopedia-carving a boat for a sword