Spirit ( Nightsisters ) The Spirits were supernatural beings which the Nightsisters of Dathomir thought to exist . It was a common opinion amongst both Jedi and Sith that the " Spirits " were based on an archaic and shamanistic interpretation of the Force . The witches believed the Spirits bestowed their blessings on Dathomir and allowed the practice of magicks by tapping into their energy . Overview . According to the beliefs of the Nightsisters , there was another realm , a parallel plane to the physical world that was inhabited by spirits . This spiritual realm was thought to be governed in balance by the Twin Deities , the Winged Goddess and the Fanged God , which were depictions of the Light and dark side of the Force . In her instructional treatise entitled " Wild Power " , Clan Mother Talzin implied there was a single representative spirit for each animal species in the spirit realm , something she calls the " ur - spirit . " These ur - spirits were the other inhabitants of the spiritual realm , under the rule of the Twin Deities . The ur - spirits of animals , according to Talzin , are " red and raw , " while that of plants " pulses with a deep green " and is " quieter and more content . " All spirits and their physical counterparts constituted Dathomir ' s " life web . " The Nightsisters also believed the two realms were so close on Dathomir that only their shamans could carry messages between them . The shamans of the Nightsisters were thought to have been " chosen " to encounter and interact with the spirit world . They were thought to act as a conduit for the Spirits themselves . Powers . According to the lore , the Spirits bestowed fertility upon the clans and claimed the souls of the dead . Nightsisters talismans were thought to have been empowered by the spirits . Darth Sidious thought those artifacts were not very different from the ones made by the ancient Sith , but no alchemist had ever been known to duplicate the non - conventional effects of the Nightsisters ' talismans , such as metamorphosis . Such a supernatural , alchemic - power deficiency among the Sith throughout their history Sidious thought " curious " . Existence . Asajj Ventress , born a Nightsister and trained successively as as Jedi apprentice and a Sith Acolyte , once wrote that her former masters Ky Narec and Dooku did not believe in the Spirits . Indeed , the Jedi thought the work of the Spirits was a primitive name for the Unifying Force and the Living Force . The Twin Deities , however , were confirmed to exist during the Clone Wars , when Jedi Knight Anakin Skywalker was brought to Mortis , a mysterious planet enclosed in a octahedral monolith . There were many parallels between the Spirits and the Force . Mother Talzin would say a Nightsister had to serve the will of the Spirits , just like a Jedi would serve the will of the Force . Moreover , it was said that Allya foretold the rise of a perfect being " brought into existence by the Spirits " , which was very reminiscent of the prophecy of the Chosen One . Behind the scenes . The Spirits worshipped by the Nightsisters were described in the 2012 reference book " " . As the part of the book in which they appear is written from a Nightsister ' s perspective , it is unclear if the spirits do exist or if they are just archaic manifestations of the Force . The book also directly links the spirits with the " Mortis Trilogy " , a story - arc of the TV series " " .