What is the central sentence of the poem "Request"?

1 .. beg his mother not to care too much about him and let him experience difficulties and setbacks. Because only in this way can people grow up, make friends with victory, and carry Mount Tai for 99 times.

2. Wrestling again and again means setbacks and difficulties. Walking through the ninety-nine ditches on Mount Tai means victory and growth. Only after wrestling again and again can we walk through the ninety-nine ditches on Mount Tai.

3. Feel free to ask questions, please answer them according to your actual situation.

I answered it myself, I hope it will help you ~ ~