The Soma Sacrifice and the Sama Veda's Place

The Sama Veda exists, almost entirely, for one rite — the soma sacrifice. Almost every chant in its repertoire was composed for some moment of that rite, and the rite’s structure is what the chant sequence in the Uttararchika is tracking. To understand the Sama Veda in its native setting, you have to understand the soma sacrifice it served.

The soma sacrifice — somayajna — was the longest and most ancient of the great Vedic rites. It existed in many forms — the one-day Agnishtoma, the multi-day Atiratra, the year-long Sattra — but the core structure was the same. The soma plant was harvested, brought to the sacrificial ground, pressed (three times a day, morning, midday, evening), filtered through a woollen sieve, mixed with milk or water, and offered into the fire. As the offering rose, the gods — chiefly Indra, but also Vayu, the Ashvins, Brihaspati, and others — were invited to drink. The remaining juice was consumed by the priests and the patron of the rite.

Each of the three daily pressings — the Pratah-savana (morning), Madhyandina-savana (midday), and Tritiya-savana (third, evening) — had its own associated chants, drawn primarily from the ninth mandala of the Rig Veda, which is dedicated entirely to soma. The Sama Veda took these Rig Vedic soma hymns and arranged them by pressing-sequence, so that the Udgatri, sitting at his place to the south of the altar, could sing in order through each pressing as it proceeded.

The chant that accompanied the actual pressing of the juice — when the soma stalks were being crushed between stones and the liquid was being squeezed through the filter — was the Pavamana chant. The word pavamana means “being purified” or “flowing clean,” and the hymns were addressed to the soma as the juice ran through the wool, clarified itself, and was caught in the lower vessel. We will come to the Pavamana hymns in their own chapter; for now, register that they are the single largest concentrated body of chant in the Sama Veda, and they exist because the soma had to be sung while it flowed.

There is an idea behind this that is worth pausing on. The Vedic ritual did not regard sound as separate from action. The pressing of the soma was not a silent mechanical operation followed by chants; the chant was part of the pressing, sustaining the action, lifting the offering with it. The Sama Vedic theory of sacrifice is that the chant is what makes the rite work. The actions are necessary; the fire is necessary; the substance is necessary; but the singing is what carries the substance up through the smoke and the words to the god. Without the chant, the sacrifice is mute.

This explains why the Sama Veda was preserved with such extreme care even though most of its verses are also in the Rig Veda. The verses without the music are the Rig Veda’s. The verses with the music are something more — they are the operating instructions for the working sacrifice. If the music is lost, the soma is just liquid; if the music is intact, the soma is the food the gods will descend to drink.

The soma sacrifice itself is rarely performed today. The Nambudiri brahmins of Kerala — who preserve the Jaiminiya recension — still perform a version of the Agnishtoma, occasionally extended into the multi-day Atiratra-Agnicayana, once or twice a decade. The most famous modern Atiratra was the one filmed in 1975 in Panjal, Kerala, which captured what may be the last performance of the rite in its full form. The chants in that recording are the Sama Veda. They sound, when you hear them, exactly as the texts describe — long, sustained, layered between voices, full of stobhas, carrying the pressing forward.