Advaita Vedanta (IAST '; Sanskrit: अद्वैत वेदान्त ]) is a philosophical concept where followers seek liberation/release by recognizing identity of the Self (Atman) and the Whole (Brahman) through long preparation and training, usually under the guidance of a guru, that involves efforts such as knowledge of scriptures, renunciation of worldly activities, and inducement of direct identity experiences. Originating in India before 788 AD, Advaita Vedanta is widely considered the most influential and most dominant sub-school of the Vedānta (literally, end or the goal of the Vedas, Sanskrit) school of Hindu philosophy. Other major sub-schools of Vedānta are ' and Dvaita; while the minor ones include Suddhadvaita, Dvaitadvaita and Achintya Bhedabheda.