You've got the right Wuxian, yes! Also thumbsing up here though we're chatting on discord now lmf, and yeah, Wei Wuxian has mixed feelings on possession but not to a point of doing anything here about it, the circumstances are beyond... the ones he's familiar with, and also. He's the guy who was accused of possessing someone else lkasjdf recently, and ouch? No bro he did not!

I could use a brush up on FFXIV aether because my FFXIV is not in depth (stares at my one lalafell and my crippling blah with dungeons) but that can certainly be at your leisure! He'd get it either way, his likewise explanation would be about energies that everything has (not strictly spirit, but... also spirit) and if you want me to do a rundown of how Untamed's cultivation seems to shake out, lmk!