 The Devi-inspired philosophy is propounded in many Hindu texts, such as the Devi Upanishad, which states that Shakti is essentially Brahman (ultimate metaphysical Reality), from her arise Prakṛti (matter) and Purusha (consciousness), she is bliss and non-bliss, the Vedas and what is different from it, the born and the unborn, and all of the universe.Shakti is Parvati, Shiva’s wife.She is also mentioned as the creative power of Shiva in Tripura Upanishad, Bahvricha Upanishad, and Guhyakali Upanishad.