Zheng Qing remembered very clearly.
Last time, when he entered the World in the Mirror in his dream, he left many things for Zhu Si. Such as books, snacks, leaves of the Mystical Grain. But after he came out from the World in the Mirror, those items he had given away were still in his grey cloth bag. They just lost their essence.
This matter troubled him for a long while.
It was also something he dared not think about carefully. If he were to rescue Zhu Si from the World in the Mirror, would she turn into ash or completely dissipate the moment she came out?
The master once told him that he was a person of destiny and could solve this problem. Zheng Qing, however, found the term "person of destiny" far-fetched, seemingly able to help anyone shirk any responsibility.