Upanishads:The Upanishads are a collection of ancient Hindu texts that contain the core philosophical ideas of Vedanta, including the concepts of Brahman (the ultimate reality) and Atman (the individual self).
Advaita Vedanta:Advaita Vedanta is a sub-school of Vedanta that emphasizes the non-dual nature of reality, where the individual self (Atman) is ultimately identical to the universal Brahman.
Moksha:Moksha is the ultimate goal of Vedanta, representing the liberation from the cycle of birth, death, and rebirth, and the realization of one's true nature as Brahman.