Ai Qing, a fish fossil, saw the answer 1. Please find the part that echoes the first section and tell me what the author wants to express in this writing.

2. You mean "fish". Through symbolism, the most common and basic philosophy of life is revealed with vivid images and simple and ordinary language.

This poem tells people that if you encounter pain and frustration in life, you should fight bravely and the meaning of life will be sublimated in the struggle.