Matsya Purana — Vishnu’s Names Across Yugas and the Gods’ Refuge During the Tārakāmaya War
सागराकारनिर्ह्रादं रसातलमहाश्रयम् मृगेन्द्रपाशैर्विततं पक्षजन्तुनिषेवितम् //
sāgarākāranirhrādaṃ rasātalamahāśrayam mṛgendrapāśairvitataṃ pakṣajantuniṣevitam //
Resounding like the ocean, it had Rasātala as its vast foundation; it was spread out with the nooses of lordly beasts, and was frequented by winged creatures.
It does not directly narrate Pralaya; instead it uses oceanic roaring imagery and netherworld (Rasātala) foundations to convey a cosmic-scale, awe-inspiring terrain—imagery often used in Puranic cosmography that frames cycles of creation and dissolution.
Indirectly, it supports the Matsya Purana’s broader ideal of discernment: powerful places and dangerous terrains (symbolized by snares/nooses and wild beings) require prudence in travel, settlement, and protection—key royal duties (rakṣaṇa) and household responsibility (safety and right choice of dwelling).
The verse functions as a site-characterization: roaring sound, vast foundation, and presence of creatures are classic markers used in Vastu-oriented texts to judge terrain potency and risk—useful when interpreting Matsya Purana-style guidance on choosing or describing sacred/fortified locations.