What is the punch line in the ninety-fifth chapter of A Dream of Red Mansions?

The first sentence is about where Baoyu came from, and the second sentence is about where he came back.

This is the word that appeared on the sand table of Miaoyu after Baoyu lost his jade. The general meaning is to persuade Baoyu to see through it early and enter Buddhism early. Only after entering the Buddha will you find that what you are trying to find is in front of you.