According to the Srikula tradition in Shaktism, Tripura Sundari is the foremost of the Mahavidyas and the highest aspect of Goddess Adi Parashakti. The Tripura Upanishad places her as the ultimate Shakti (energy, power) of the universe. She is described as the supreme consciousness, ruling from above Brahma, Vishnu, Rudra and Ishwara. Tripurasundari is said to sit on Sadasiva's lap in his form as "Kāmeśvara", the "Lord of Desire". She is also the primary goddess associated with the Shakta Tantric tradition known as Sri Vidya.