Secondly, there's still that one purpose: borrowing brainpower.
The artifact refining style of the Jiushan Sect, due to Lady Xuanhua's study of modern knowledge, especially in mechanical construction and such, has changed to some extent and already shows some differences compared to the Xuanwei Realm:
For example, various Shenxiao Flying Boats.
But overall, it still leans towards the ideas of the Xuanwei Realm.
This is normal, after all, she is a cultivator who grew up in the Xuanwei Realm.
But the people in the nursing home are different. The concepts they learned from a young age, the novels and comics they saw growing up, have all made their thinking distinctly different from Lady Xuanhua.
Zheng Fa handed them this Xuanming Sha to "play" with, just to see what kind of fresh ideas their divergent thinking could produce, and whether it might bring him some surprises.
