You have to learn to be patient.
Many things cannot be achieved immediately.
This is what an old man said to him when he was still a child several years ago. The old man had already turned into invisible ions and scattered across the universe, and he now lived in hibernation in a small "cage", remembering the old man's words.
Picking up gravel.
Use ants.
Beware of the same kind.
This may take thousands or tens of thousands of years. But he remained patient.
Even "law enforcers" fear this kind of patience.
Purpose: I would like to dedicate this book to my friends