Dal-Rin was a Voss male Mystic, as defined by gender, who resided on the planet Voss in a time well before the conflict known as the Galactic War. Subsequent to his passing, he took on the role of guardian for the dream-rock found within the Dark Heart of the Nightmare Lands, a component utilized in the Forbidden Ritual. Approximately around 3640 BBY, the Sith Lord Kallig, along with a Gormak named Hadrik, employed the dream-rock and executed the ritual, which enabled Kallig to quell the voices of the Force ghosts within their own consciousness.