"A Yogini is the sacred feminine force made incarnate: the goddesses of mythology (Lakshmi, Parvati, Durga, Kali) as well as the ordinary human woman who is enlightened, both having exuberant passion, spiritual powers and deep insight, capable of giving birth to saints, peacemakers, and Yogis."
Thank you Wikipedia.
Wikipedia also has this to say: "A woman dedicated to the pursuit of spiritual knowledge and mystical insight, or a Yogini, has many faces: from devotional to demure, and from fiery to fierce; all of these can be embraced under the rubric of a Yogini."
