Advaita Vedanta (Sanskrit: advaita-vedānta—“the non-dual culmination of knowledge”) is a school of Vedanta within Sanatana Dharma: the only reality is the boundless, qualityless Absolute, Brahman, and a person’s true Self, Atman, is identical to this Absolute. The teaching was systematized by Sri Adi Shankaracharya in the ninth century on the basis of the Upanishads; since then, it has remained one of the most influential philosophical schools in the history of Sanatana Dharma.
Etymology
The word Vedanta consists of two parts: veda—“knowledge,” and anta—“end, completion, limit.” Literally, Vedanta means “the end of knowledge”—not in the sense that knowing ceases, but as its highest point, beyond which knowledge no longer requires further clarification. Advaita translates as “not two,” or non-duality: the prefix a- negates duality (dvaita). Together they form “Advaita Vedanta”—“the non-dual culmination of all knowledge,” the summit upon reaching which the practitioner leaves behind everything dual and mental in order to directly behold their own nature.
The Foundation of the Teaching: Brahman and Atman
The school’s central tenet is simple to state and difficult to realize: there is only one reality—Brahman, boundless and immutable being-consciousness-bliss (sat-chit-ananda). The diversity of the world does not constitute a second reality alongside Brahman; it is a manifestation of that same one reality, perceived through the limitations of the individual mind. A person’s true Self, Atman, is not separate from Brahman and is not a part of it—it is identical to it. Advaita regards the division between the “knower” and the “known,” between the soul and the Absolute, as belonging to the realm of relative knowledge rather than ultimate truth.
“This Atman is not different from Brahman; it is Brahman.”
Swami Vishnudevananda Giri
The tradition affirms the identity of Atman and Brahman in four great sayings (mahāvākyas), one taken from each Veda:
- “Prajnanam Brahma”—“Consciousness is Brahman” (Aitareya Upanishad, Rig Veda)
- “Aham Brahmāsmi”—“I am Brahman” (Brihadaranyaka Upanishad, Yajur Veda)
- “Tat Tvam Asi”—“You are That” (Chandogya Upanishad, Sama Veda)
- “Ayam Ātmā Brahma”—“This Atman is Brahman” (Mandukya Upanishad, Atharva Veda)
“Tat Tvam Asi”—“You are That.”
— Chandogya Upanishad, 6.8.7
The Nature of the World: Maya and Avidya
If reality is one, where does the sense of multiplicity—of bodies, things, time, and suffering—come from? Advaita answers: its cause is ignorance (avidya) and its manifesting power, maya. Maya does not mean that the world is a deception or that it does not exist at all; it means that the world possesses no self-sufficient reality independent of Brahman. Just as events experienced in a dream are entirely real to the dreamer but dissolve upon awakening, the phenomenal world is experienced as real as long as identification with the body and mind persists. Avidya is ignorance of one’s own nature, not a lack of information: it is not so much that a person does not know about Brahman, but rather that they mistake for themselves what they are not—the body, emotions, roles, and biography.
Sources and Lineage of Transmission
The philosophical foundation of Advaita Vedanta is the so-called prasthana-trayi—three groups of texts: the Upanishads (shruti, revelation), Badarayana’s Brahma Sutra, also known as the Vedanta Sutra (systematization), and the Bhagavad Gita (smriti, practical application).
The teaching was given systematic form by Sri Adi Shankaracharya (788–820), who wrote commentaries on all three groups of texts and authored the independent treatises “Vivekachudamani,” “Atma Bodha,” “Tattva Bodha,” and “Aparokshanubhuti.” Shankaracharya took sannyasa at the age of nine and later established ten monastic orders (dasha-nami-sannyasa) to preserve and transmit the teaching. The lineage of succession, which tradition traces back to Brahma, continues through Shiva, Dattatreya, the rishi Vasishtha, the four Kumaras led by Sanatkumara, Vyasa, Shuka, Gaudapada, and Govindapada—Shankaracharya’s teacher—down to later systematizers, including Vidyaranya, the author of the “Vedanta Panchadashi.”
The Path to Realization
Classical Advaita Vedanta does not offer an instantaneous method: the realization of non-duality proceeds through three successive stages—
- shravana (listening to the teaching from a qualified teacher)
- manana (reflection and the resolution of doubts)
- nididhyasana (continuous contemplation of what has been heard until it becomes direct experience)
The development of the ability to discriminate (viveka) between the eternal and the transient, and of detachment (vairagya) from attachments, is regarded by the tradition as a necessary prerequisite for beginning the practice. One of the best-known methods originating in this tradition is atma-vichara, self-inquiry, which was revived in the twentieth century by the South Indian saint Sri Ramana Maharshi (1879–1950). He urged seekers not to look for an intellectual answer to the question “Who am I?” but to trace every thought that arises back to its source, until the very source of thoughts reveals itself as pure, unconditioned consciousness.
Advaita Vedanta in the Guru’s Teachings
In the tradition of Pratyaksha Advaita transmitted by Swami Vishnudevananda Giri, Advaita Vedanta is regarded not as one philosophical system among others, but as the foundation of the entire spiritual path: the nondual view forms the basis upon which both contemplative practice and conscious conduct rest. Indicating the place of Advaita within the broader structure of the teachings, the Guru explains the relationship between the levels of the tradition:
“Sanatana Dharma is the outer shell of the teachings; Advaita, Advaita Vedanta, is the flesh of the teachings; Laya Yoga is the heart of the teachings; and the state of sahaja is its spirit.”
— Swami Vishnudevananda Giri
The study of classical Advaita Vedanta should begin with the Upanishads and the texts of Shankaracharya, since they provide the language and conceptual precision without which it is difficult to progress further—whether in understanding the nature of God, oneself, or what is called liberation.
Meaning for the Practitioner
Recognizing oneself as identical with Brahman does not negate everyday life or require withdrawal from the world—it changes that with which a person identifies. As long as a person takes the body, mind, and circumstances to be the self, they inevitably remain dependent on their changeability: the body ages, and the mind vacillates between pleasure and pain. Advaita Vedanta does not promise an instant and easy escape from this dependence—the path of discrimination requires prolonged and sincere practice under the guidance of a teacher. But it points out that the source of freedom is not somewhere outside and does not have to be attained anew—it is already present, and the practitioner’s task is not to create it, but to stop obscuring it through identifications.
Related Concepts
More information about the key concepts of Advaita Vedanta—Brahman, Atman, maya, moksha, and the figure of Sri Adi Shankaracharya—can be found in separate articles in the website’s glossary.
