Taoist Master Yiqing: Lan Xin, before master leaves, I will tell you a fortune. When you are eighteen, your biological parents will come to find you, and you go back with them.
Lan Xin: Master, isn't it good for me to be alone? Why do you want to recognize a pair of parents you don't know?
Master: We metaphysicians must be missing one of the five elements. Do you know what you are missing?
Lan Xin: I know, I'm short of money.
Master: So your biological parents are rich.
Lan Xin's eyes lit up.
Concept: metaphysics