I am a passer-by in the spring breeze. What does this poem mean?

In your world, Chunfeng and I are just passers-by. The whole poem "Chunfeng and I are both passers-by" means lying on a boat and getting drunk and seeing a starry world, which means Chunfeng and I are in your world, just like passers-by. I am a passer-by in the spring breeze is a very famous modern poem written by Xu Zhimo, a famous poet in China. This poem depicts the theme that life is short and time flies, and expresses the author's sigh over the passage of time and thinking about the meaning of life.