To stop is easier said than done. Meng Yao has used his manipulation to protect himself. He isn't a strong man - physically or magically. If he is shoved into another environment where he is beaten or mocked, old habits might surface.

Those are the demons he must combat.

"Will you take my Guqin?"

He could acquire another, but their guqins are special - and he can cause great mischief with his.

"Keep it safe. If we need to battle a common foe, I will ask for it. Otherwise I don't need it."