Adi Shankaracharya (traditional dates 788–820 CE, with academic dating placing him in the early 8th century) was the philosopher who systematised Advaita Vedanta and established its institutional framework. Born at Kaladi in present-day Kerala, he is credited with composing commentaries on the prasthana-traya (Brahma Sutras, ten principal Upanishads, Bhagavad Gita), reorganising the dashanami sannyasi order, and founding four monastic seats at the cardinal directions of India. He died at Kedarnath in the Himalayas at the traditional age of 32. The Sanskrit literature attributes hundreds of texts and stotras to him, though academic consensus narrows the firmly authentic works to about ten.
Life: the traditional account
The biographies (Śaṅkara-digvijaya) by Madhava-Vidyaranya (14th c.) and Anandagiri give the standard narrative. Shankara was born to Shivaguru and Aryamba at Kaladi, said to be the result of long prayer to Shiva at the Trichur Vadakkunnathan temple. He left home for sannyasa at age 8, took initiation from Govinda Bhagavadpada on the banks of the Narmada, and studied under him for several years. His teacher’s teacher (parama-guru) was Gaudapada, author of the Mandukya Karika, the earliest systematic Advaita text. Shankara then travelled across India, debating other schools, composing commentaries, and establishing monastic seats. He died at Kedarnath in the Himalayas at age 32.
The principal works
Shankara’s textual output divides into three categories. The bhashyas (commentaries) on the prasthana-traya are the doctrinal foundation:
- Brahma Sutra Bhashya: commentary on Badarayana’s 555 sutras. The foundational Advaita commentary.
- Upanishad Bhashyas: commentaries on Isha, Kena, Katha, Prashna, Mundaka, Mandukya, Aitareya, Taittiriya, Chandogya, Brihadaranyaka. The Mandukya Bhashya incorporates Gaudapada’s Karika.
- Bhagavad Gita Bhashya: the first major commentary on the Gita.
The prakaranas (independent treatises) include the Upadeshasahasri (the only certainly authentic prakarana), the Atma-Bodha, the Tattva-Bodha (probably later), and the Vivekachudamani (authorship debated). The stotras (devotional hymns) attributed to him include the Bhaja Govindam, the Soundarya Lahari (shared with Lakshmidhara tradition), the Dakshinamurti Stotra, the Saundaryalahari, and dozens of hymns to specific deities.
The four mathas
Shankara established four monastic seats (mathas) at the cardinal directions of India, each headed by a successor titled Shankaracharya. The four are:
- Sringeri Sharada Peetham in Karnataka, on the banks of the Tunga river. The southern matha. First acharya: Sureshvara.
- Dwarka Sharada Peetham in Gujarat. The western matha. First acharya: Hastamalaka.
- Govardhana Peetham at Puri, Odisha. The eastern matha. First acharya: Padmapada.
- Jyotirmath at Joshimath in Uttarakhand. The northern matha. First acharya: Totaka.
The Kanchi Kamakoti Peetham at Kanchipuram is also claimed as a Shankara foundation by its tradition, though this is contested by the four-matha consensus. Each matha is associated with one of the four Vedas and one of the four Mahavakyas.
The doctrinal core
Shankara’s Advaita is summarised by a single famous verse from the Brahmajnanavalimala: brahma satyaṃ jagan mithyā jīvo brahmaiva nāparaḥ, “Brahman is real, the world is appearance, the individual self is Brahman and nothing else”. The three claims are:
- Brahman alone is paramarthika satya (absolute reality).
- The world has vyavaharika satya (conventional reality); it is mithya, dependent reality, not independent.
- The individual self (jiva) is, in essence, identical with Brahman; the appearance of separation is due to avidya.
The mechanism by which the non-dual appears as dual is adhyāsa (superimposition), which Shankara introduces in the opening of his Brahma Sutra Bhashya. The remedy is jnana, knowledge of the non-difference, cultivated through shravana, manana, and nididhyasana.
The famous debates
Shankara’s biographies record several debates, of which two are most famous. The debate with Mandana Mishra, a leading Mimamsaka, at Mahishmati ended with Mandana’s defeat and his initiation as Shankara’s disciple under the name Sureshvara. Mandana’s wife Ubhaya Bharati then debated Shankara on the topic of kamashastra (the science of erotics), an area Shankara as a celibate sannyasi had not studied; he is said to have used yogic powers to enter a recently dead king’s body to acquire the necessary experience. The story functions as legend more than history, but it establishes Shankara’s reputation for facing every challenge the available knowledge-systems could pose.
For what it’s worth, the dating of Shankara is one of the great unresolved questions of Indian historiography. The traditional matha records place him as early as 509 BCE; academic consensus places him in the 8th century CE. The 1,300-year gap is partly because the early Indian convention treated Shankara as a recurring office rather than a single historical individual, with later acharyas absorbing into the founder’s narrative. The 8th-century date rests on cross-references to Shankara in dated Buddhist texts.
Common questions
Why is he called “Adi” (first) Shankara?
To distinguish him from the line of successor Shankaracharyas who head the four mathas. Each matha has a continuous succession of acharyas titled Shankaracharya, and the founder is referred to as Adi Shankara (“first Shankara”) or Bhagavadpada Shankara (“the venerable Shankara”) to distinguish him from his successors. The current heads of the four mathas are also called Shankaracharya within their lineages.
Was Shankara a Vedantin or a Buddhist?
Shankara was a Vedantin, but he was accused by his opponents of being a “crypto-Buddhist” (pracchanna-bauddha) because his Advaita doctrine of mithya and avidya structurally resembles Madhyamika emptiness. Shankara himself wrote anti-Buddhist polemics. The structural similarity is real (both deny independent reality to the world of appearances), but Shankara firmly distinguishes his position by affirming Brahman as positive reality, whereas Madhyamika denies positive reality to everything including emptiness itself.
Did Shankara accept bhakti?
Yes, abundantly. His stotras (devotional hymns) to Shiva, Devi, Vishnu, Ganesha, Subrahmanya and other deities are widely sung. The Bhaja Govindam is one of the most famous Hindu hymns. Shankara’s position is that bhakti is the operative path at the vyavaharika level and is the principal means of citta-shuddhi (purification of mind), which makes jnana possible. Bhakti is not opposed to jnana; it is its preparation.
One limitation worth noting
The Shankara biographical literature is hagiographic. Madhava-Vidyaranya’s Shankara-digvijaya was composed several centuries after Shankara’s life and incorporates miracle stories, geographic claims, and chronological details that are not independently verifiable. Modern academic biographies (Hacker, Mayeda, Cardona) approach the figure through textual analysis of the certainly-authentic works and treat the legendary biography as a separate literary genre. A reader interested in Shankara as a historical figure should distinguish the two.
The biographical and doctrinal material is summarised at the Adi Shankara entry on Wikipedia. The four mathas and their succession are catalogued at the Shankaracharya entry on Wikipedia.
