The caster delves into the realm of perception and thought. They create an illusory cell, imperceptible to anyone but the intended creature. Within this ethereal prison, the walls twist and shift to mirror the victim's deepest fears, regrets, or desires, manifesting as a personalized torment designed to keep them mentally trapped. The creature perceives itself as confined, restrained by unseen forces, while in reality, it remains physically free.

If the target is moved out of the illusion, makes a melee attack through it, or reaches any part of its body through it, the target takes 10d10 psychic damage, and the spell ends.