Advaita Vedānta

Advaita Vedānta (“the non-dual end of the Vedas”) is one of the principal schools of Hindu philosophy. Systematized in its classical form by Śaṅkara (8th century), it teaches the fundamental non-duality of Ātman (the Self) and Brahman (the Absolute). According to this doctrine, the multiplicity of the world is not an ultimate reality but a conditioned manifestation whose apparent separateness results from ignorance (avidyā).

More specifically

The term advaita literally means “not-two.” It does not affirm a numerical unity opposed to plurality; rather, it denies that duality possesses ultimate reality. Advaita teaches that ultimate reality is one, infinite, and indivisible: Brahman. Whatever appears distinct from It possesses only a relative or conditioned reality.

This doctrine is based primarily upon the Upaniṣads, the Bhagavad Gītā, and the Brahma Sūtras, which together constitute the three scriptural foundations (prasthāna-traya) of Vedānta. Among the celebrated mahāvākyas (“great sayings”) of the Upaniṣads, one of the most famous is tat tvam asi (“Thou art That”), expressing the profound identity between the individual Self and the Absolute.

According to Advaita, human beings regard themselves as limited because they identify with the body, the mind, and the conditions of individual existence. This fundamental error constitutes metaphysical ignorance (avidyā). Liberation (mokṣa) therefore does not consist in acquiring something new, but in recognizing what is already true: the identity of Ātman and Brahman.

The phenomenal world is often described as māyā. This term does not simply mean “illusion” in the sense of complete non-existence, but rather a relative, conditioned, and transitory reality. The world appears and possesses a certain empirical reality, yet it does not possess the absolute reality of Brahman. Advaita thus distinguishes different levels of reality, avoiding both naïve realism and nihilism.

The path of knowledge (jñāna-mārga) occupies a central place. Through listening to traditional teaching (śravaṇa), reflective inquiry (manana), and contemplative assimilation (nididhyāsana), the disciple is led beyond identification with the ego and toward the recognition of his true nature. This knowledge is not merely intellectual; it is a direct realization of what is.

Advaita Vedānta has exercised a profound influence on Indian spirituality and has inspired numerous dialogues with Western metaphysical traditions. Several perennialist and traditionalist authors, notably René Guénon and Frithjof Schuon, regarded it as one of the most rigorous formulations of pure metaphysics. The identity of Ātman and Brahman, however, should not be understood as a confusion of levels of reality, but as the recognition of their principial unity beyond all duality.

From a comparative perspective, Advaita exhibits certain affinities with forms of Neoplatonism, apophatic theology, and Christian mysticism, while preserving its own language and doctrinal framework. It remains one of the most accomplished expressions of the doctrine of non-duality.

More specifically

Further reading