Shiva following the Demise of Sati experienced entered into a deep meditation. Without having his Electricity no creation was achievable and this resulted in an imbalance while in the universe. To bring him from his deep meditation, Sati took beginning as Parvati. Devi Tripura Sundari can be popularly generally https://www.youtube.com/watch?v=OnBTYRqg61k&t=6s