Matsya Purana — The Origin of Yajña in Tretā Yuga and the Debate on Animal Sacrifice vs. Non-...
सम्प्रतीतेषु देवेषु सामगेषु च सुस्वरम् परिक्रान्तेषु लघुषु अध्वर्युपुरुषेषु च //
sampratīteṣu deveṣu sāmageṣu ca susvaram parikrānteṣu laghuṣu adhvaryupuruṣeṣu ca //
When the deities have been duly invoked, when the Sāma-chanters (sāmaga) sing with a clear and auspicious tone, and when the swift-moving officiants—especially the Adhvaryu priests—make their rounds and perform their duties around the altar, the rite proceeds in its proper order.
This verse is not about Pralaya; it focuses on the orderly conduct of a Vedic sacrifice—invocation of deities, proper Sāma chanting, and the Adhvaryu’s active ritual movements.
It implies that a householder (and a king as patron of rites) should ensure sacrifices are performed correctly—qualified priests, accurate chanting, and disciplined ritual execution—so the yajña yields its intended religious merit.
Ritually, it highlights the importance of susvara (proper intonation) in Sāma recitation and the Adhvaryu’s parikrama (functional movement/circumambulation) around the altar as essential components of correct yajña procedure.