The Sāma Veda is the third of the four Vedas (after the Ṛg and Yajur Vedas). Its name derives from 'sāman' meaning a melodic chant or song. Approximately 75 percent of its content is drawn from the Ṛg Veda, with the verses transformed through rhythmic elaboration and musical setting for use in Soma yājñas and other Vedic sacrifices. The Sāma Veda is primarily a liturgical document — its power lies not in the semantic content of its mantras alone but in the sacred resonance of their musical performance by the Udgātṛ priests.
The Chāndogya Upaniṣad, one of the principal Upaniṣads and a key text for Viśiṣṭādvaita, belongs to the Sāma Vedic tradition. In the Bhagavad Gītā (10.22), Bhagavān Kṛṣṇa declares: 'vedānāṃ sāmavedo'smi' — 'among the Vedas, I am the Sāma Veda.' This self-identification underscores the exalted status accorded to the Sāma Veda within the Vaiṣṇava tradition: it is the Veda that most directly manifests Bhagavān's own musical nature and the ecstatic dimension of devotion.
Within the Śrī Vaiṣṇava sampradāya, the Sāma Veda occupies a special position because of its explicit association with the Tiruvāymozhi. The tradition asserts that Nammāzhvār's Tiruvāymozhi is the Tamil Sāma Veda — the 'Drāviḍa Vēdam' — sung out of the Āzhvār's direct experience of Bhagavān. The Tiruvāymozhi, like the Sāma Veda, is not merely poetry or philosophy but melodic revelation: it is sung in specific rāgas (in the traditional kālakṣepam recitation) and its power operates through the resonance of its chanted sound as much as through the meaning of its words. The Āchāryas state that hearing the Tiruvāymozhi sung produces in the qualified listener the same purification and elevation that the Sāma Veda mantras were said to produce in the Vedic sacrifices.
The equation 'Tiruvāymozhi = Sāma Veda' is not merely metaphorical but carries theological weight. It means that the Tiruvāymozhi carries full Vedic authority (prāmāṇya) within the Śrī Vaiṣṇava tradition; that reciting it is equivalent to performing the Vedic rites; and that Nammāzhvār, as its author, stands in the position of the Sāma Veda ṛṣi, directly inspired by Bhagavān. This theological identification is the basis for the practice of reciting the Tiruvāymozhi in Śrī Vaiṣṇava temples with the same honor accorded to the Vedic texts.