Matsya Purana — The Battle at Tripura: Shiva’s Strategy
देवानां सिंहनादश्च सर्वतूर्यरवो महान् ग्रस्तो ऽभूद्दैत्यनादैश्च चन्द्रस्तोयधरैरिव //
devānāṃ siṃhanādaśca sarvatūryaravo mahān grasto 'bhūddaityanādaiśca candrastoyadharairiva //
The Devas’ lion-roar and the mighty clamour of all their war-instruments were swallowed up by the Daityas’ uproar—just as the moon is engulfed by water-bearing clouds.
This verse does not describe Pralaya directly; it uses a cosmic image (the moon obscured by clouds) to portray how the Daityas’ tumult overwhelms the Devas’ roar, emphasizing temporary eclipse of divine advantage rather than cosmic dissolution.
Indirectly, it reflects a Rajadharma-style lesson in morale and strategy: even a strong side can be ‘drowned out’ if the opponent’s force and coordination dominate—suggesting the importance of disciplined organization, timely action, and maintaining collective resolve.
No Vastu or temple-ritual rule is stated here; the only ritual-adjacent element is the reference to tūrya (ceremonial/war instruments), highlighting their role in public, martial, and auspicious soundscapes rather than architecture.