I was at the shrine of destruction in the crossing temple and removed all my gweths and crystal rings, and was still getting the messaging about my thoughts being split when meditating. Even tried to log out and back in to see if that helped clear it, newp.
I hadn't tried it with a non-gweth wearing alt yet.

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An agonizing pain fills you as you feel your tongue turn to powder in your mouth! Through a haze of uncertainty and loss, you realize that something you just said was very wrong.