Pretty.

This pendant or brooch device serves as protection for the psyche. The wearer is protected from the magic jar spell or any similar mental attack that would usurp control of the wearer’s body. If the wearer is slain, the psyche enters the amulet and is protected for seven full days.

This protects against flaws accumulated by raise dead and similar spells that revive the recently perished.

Thereafter, it departs to the Grey. If the amulet is destroyed during the seven days, the psyche is utterly and irrevocably annihilated.