Ekajati or Ekajata (Tibetan: ral chig ma. English: One Braid of Hair), one of the 21 Taras, is one of the most powerful and fierce goddesses of Tibetan mythology, a modification of the old Tibetan goddess of heaven, whose right eye was pierced by the tantric master Padmasambhava as he banished her.
Often she appears as liberator in the mandala of Green Tara. Along with that her ascribed powers are removing the fear of enemies, spreading joy and removing personal hindrances on the path to enlightenment.

Ekajati is the protector of secret mantras and "as the mother of the mothers of all the Buddhas," represents ultimate unity. As such her own mantra is also secret.

The first Karmapa Düsum Kyenpa already meditated upon her in early childhood.

According to Chogyal Namkhai Norbu Rinpoche, she is the principle guardian of the Dzogchen teachings and is "a personification of the essentially non-dual nature of primordial energy." [1]

Ekajata is one of the most powerful goddesses in the Vajrayanic Pantheon. If a man listen to her mantra, he is at once freed fromi all obstacles, and is attended always with good fortune, his enemies are destroyed, and he becomes religiously inclined.

Ekajata is a feroceous form of Tara. In simplest form, she is represented seated. holding in her two hands the chopper and skull cup. and in her crown is an image of Akshyobhya. In other form she is represented with two to twenty-four arms. She is generally standing on her left foot and her right ankle stepping on corpses. She has the third eye, she is laughing horribly with prominent teeth, and protruding tongue. Her eyes are red and round. Her hips are covered by a tiger skin, and she wears a long garland of heads. If painted her colour is blue. She is dwarf and corpulent. If she has four arms, her symbols are sword. knife. blue lotus and a skull cup.

[1] Norbu, Namkhai (1986). The Crystal and the Way of Light. London: Routledge & Kegan Paul.