Matsya Purana — Navagraha Sacrifice for Planetary Pacification and Prosperity
शोभनं कारयेत्कुण्डं यथावल्लक्षणान्वितम् चतुरस्रं समन्तात्तु योनिवक्त्रं समेखलम् //
śobhanaṃ kārayetkuṇḍaṃ yathāvallakṣaṇānvitam caturasraṃ samantāttu yonivaktraṃ samekhalam //
One should have a beautiful sacrificial fire-pit (kuṇḍa) constructed, furnished with the proper marks. It should be square on all sides, with a well-formed yoni (spout/channel) and mouth, and provided with an even surrounding rim (mekhalā).
This verse is not about Pralaya; it belongs to the Matsya Purana’s Vastuvidyā/ritual-architecture instructions, specifying correct construction features for a homa kuṇḍa.
It guides the king/householder to perform Vedic-Puranic rites properly: commissioning a kuṇḍa with correct proportions and features is part of disciplined yajña/homa practice and ritual responsibility.
It prescribes a square kuṇḍa with a defined yoni-vaktra (ritual spout/mouth) and an even mekhalā (encircling rim), emphasizing standardized sacred geometry and functional ritual design.