The Nightsisters' altar, situated within the Nightsister lair on the planet Dathomir, served as a significant fixture.
Upon Nightsister Asajj Ventress's homecoming to Dathomir, she was positioned upon the altar. Simultaneously, Mother Talzin instructed the other Nightsisters to collect receptacles filled with the Water of Life. The assembled group then formed a ring around Ventress, surrounding her with the Waters, as Talzin guided them through a shamanistic rite with the purpose of mending the injured assassin. As the ceremony progressed, the potent dark magic induced intense and agonizing flashbacks within Ventress's mind. She relived her relocation to Hal'Sted and his subsequent demise, her training under Ky Narec followed by his assassination, and finally, her apprenticeship under Dooku and his attempt to eliminate Ventress.