The Elemental Goddesses were a group of supernatural entities responsible for the conservation of nature and humanity, each being resembling human females with characteristics representing various elements and concepts (such water, fire, light, sky, justice, knowledge etc.).
These beings brought Willow Rosenberg's consciousness into their dimension while Warren Mears was forcefully operating on her. They encountered Willow again during her astral journey with Aluwyn, an associate of their's. The offered Willow the chance to choose her own spiritual guide, including an illusion of Tara Maclay. Willow, however, chose Aluwyn as her guide, despite her trickery.