One hook is enough for tomorrow. Why is it full of light?

Here is a story. The central idea of the story is that Lin Zexu has a talented and attractive daughter. She married Shen Baozhen, who was quite talented at that time. Shen Baozhen was boastful and arrogant when he was young. When Lin Zexu heard other people's comments, he wanted to find a chance to talk to Shen Baozhen.

On one occasion, when Shen Baozhen was drinking on a moonlit night, he wrote two poems about the moon: How can tomorrow shine with one hook? The meaning of these two sentences is that the crooked waning moon illuminates the earth, so why is there a full moon like a silver plate? Shen Baozhen asked Lin Zexu to read poetry. After reading it, Lin Zexu thought for a moment, took a pen, and changed the word "must" into the word "situation", which made this poem: one hook is enough, not to mention tomorrow, radiant.

Shen Baozhen was ashamed after reading it, because although it was a word difference, its meaning was quite different, and it changed from a complacent tone to a vivid portrayal of Top Gun. From then on, Shen Baozhen became modest and studious.

The heart is like the moon. Are you content with a clear head or are you determined to be brilliant? It is true that it is easy for a person to have a clear idea, but it is extremely difficult to become beautiful.