Matsya Purana — Vishnu’s Battle with the Daityas: Astra-Combat
तस्य तल्लाघवं दृष्ट्वा दानवाः क्रोधमूर्छिताः नर्दमानाः प्रयत्नेन चक्रुरत्यद्भुतं रणम् //
tasya tallāghavaṃ dṛṣṭvā dānavāḥ krodhamūrchitāḥ nardamānāḥ prayatnena cakruratyadbhutaṃ raṇam //
Seeing his remarkable swiftness, the Dānavas—overwhelmed and maddened with anger—roared aloud and, with all their effort, waged a most astonishing battle.
This verse does not discuss Pralaya; it is a battlefield description highlighting the Dānavas’ anger and the extraordinary intensity of combat after witnessing an opponent’s agility.
Indirectly, it reflects the Purāṇic view that prowess, alertness, and disciplined exertion (prayatna) decide outcomes in conflict—an implied lesson for rulers on preparedness and strategic response when confronted by a superior adversary.
No Vāstu/temple-building or ritual procedure is stated in this verse; its focus is purely martial—roaring warriors, anger, and an ‘astonishing battle’ (atyadbhuta raṇa).