In this talk, how Devi is depicted as the ultimate principle in the Upanishads is shown. Further the references to Devi worship in multiple Upanishads, especially in the Shakta Upanishads and key passages within the principal Upanishads such as the Kena, Mundaka, and Shvetashvatara Upanishads are shown. The session also highlights the importance of Devi Upasana in the pursuit of the Moksha Purushartha.