The System of the Vedanta according to Badarayana's Brahma-Sutras and Cankara's Commentary c8.s1.t4.2

c8.s1.t4.2

In the Vedânta system Idealism is represented by the esoteric view of the doctrine of identity, Realism by the exoteric doctrine of the Creation of the world. For the esoteric view the soul is identical with the Brahman and to grasp this only the right knowledge of the Self is needed, and no proof of immortality. The exoteric view makes us emerge from and return to Brahman; with this conception no doctrine of immortality can be reconciled but only the view of the Upanishads, expressed in the words (Mund. 2, 1, 1).