Through the collision of the two worlds of Old Port and Hidden Scale, the book tells the story of how a person goes from the edge of being swallowed by the rules to the shore where he decides not to push the door again. The ultimate core is not "win", but "survive and be willing to live well."
There is no water behind the door, but water is in front of the door. Those who push the door will be swallowed by the water.
Shen Ye didn't push the door open. So he survived.
