A story dreamed up by the author sets up a big world view. "Quan" and "Drowning" are on the same plane, but one is on the ground and the other is underground, so neither party knows the existence of the other. Until a time and space dislocation caused the two "worlds" originally above and below the ground to merge into the same continent, leaving only a silver boundary line. Lin Shen's dream could predict the future. He actually saw a dark red pool on the other side of the boundary line and pulled him in...
Intention:. ?