Dhanvantariधन्वन्तरि

Dhanvantari (धन्वन्तरि) is the physician of the gods and the presiding deity of Āyurveda, India's classical system of medicine. He belongs to one of the most vivid scenes in Purāṇic literature: the churning of the ocean of milk, from which he emerged carrying the pot of amṛta, the nectar of immortality. The Bhāgavata Purāṇa counts him among the avatāras of Vishnu, a descent whose purpose was not conquest but healing — the recovery of life itself from the depths.

The churning of the ocean

When the devas and asuras churned the cosmic ocean for its treasures, Dhanvantari appeared near the climax of the labour, a radiant figure holding the vessel of amṛta. His arrival set off the struggle for the nectar that runs through so much later myth, including the stories attached to the Kumbha Melā. In this scene he stands at the boundary between mortality and its cure: the nectar he carries is the concentrated essence of the ocean's life-giving power.

Patron of Āyurveda

Tradition makes Dhanvantari the fountainhead of medical knowledge. Purāṇic genealogies also speak of a Dhanvantari born as a king of Kāśī, who received the science of healing and taught it to sages from whom the classical medical lineages descend; the Suśruta Saṃhitā, the great treatise of surgery, presents its teaching as delivered by Dhanvantari of Kāśī. Whether as god or deified king, he personifies the conviction that medicine is a sacred inheritance rather than a mere craft.

Worship

Dhanvantari is invoked by physicians and students of Āyurveda at the start of study and practice. His most visible modern observance is Dhanteras, the day of Dhanvantari's appearance celebrated two days before Diwali, which the Government of India has also marked as National Ayurveda Day. Images show him four-armed, holding the nectar pot and often a leech, conch or herbs — the god of life and death's postponement, honoured wherever healing is attempted.