Yu Huan squinted his eyes, watching the person in front of him, fixated on her continuously snapping fingers.

If his judgment was correct, this snapping was akin to a psychological anchor, creating a mechanical action to constantly remind oneself of their mental state.

However, this feeling, though simple to describe, was nearly impossible to achieve.

Unless the person had experienced possession and was long in a state similar to "schizophrenia," they couldn't deliberately control their mind like this.