The encounter between Xu Jing and Zhou Mang is the result of the transition between old and new states.
The former spent ten years writing down his thoughts
He said: "I love Yunhui, cherish it and don't miss it."
The latter searched for ten years and finally ended up with a square, empty wooden box.
He said: "Go slowly to Qingzhong and wait for me to find you."
Purpose: Sacrificing small love for the greater good