Within Tibetan Buddhism, she has 21 major forms in all, each tied to a certain color and energy. And each offers some feminine attribute, of ultimate benefit to the spiritual aspirant who asks for her assistance.
Another quality of feminine principle which she shares with the dakinis is playfulness. As John Blofeld expands upon in Bodhisattva of Compassion, Tārā is frequently depicted as a young sixteen year old girlish woman. She oftens manifests in the lives of dharma practitioners when they take themselves, or spiritual path too seriously. There are Tibetan tales in which she laughs at self-righteousness, or plays pranks on those who lack reverence for the feminine. In Magic Dance: The Display of the Self-Nature of the Five Wisdom Dakinis, Thinley Norbu explores this as "Playmind". Applied to Tārā one could say that her playful mind can relieve ordinary minds which become rigidly serious or tightly gripped by dualistic distinctions. She takes delight in an open mind and a receptive heart then. For in this openness and receptivity her blessings can naturally unfold and her energies can quicken the aspirants spiritual development.
These qualities of feminine principle then, found an expression in Indian Mahayana Buddhism and the emerging Vajravana of Tibet, as the many forms of Tārā, as dakinis, as Prajnaparamita, and as many other local and specialized feminine divinities. As the worship of Tārā developed, various prayers, chants and mantras became associated with her. These came out of a felt devotional need, and from her inspiration causing spiritual masters to compose and set down sadhanas, or tantric meditation practices. Two ways of approach to her began to emerge. In one common folk and lay practitioners would simply directly appeal to her to ease some of the travails of worldly life. In the second, she became a Tantric deity whose practice would be used by monks or tantric yogis in order to develop her qualities in themselves, ultimately leading through her to the source of her qualities, which are Enlightenment, Enlightened Compassion, and Enlightened Mind.