Matsya Purana — Tripura Takes Refuge in the Ocean; Maya’s Hidden Nectar-Reservoir and the God...
अहो हि कालस्य बलम् अहो कालो हि दुर्जयः यत्रेदृशस्य दुर्गस्य उपरोधो ऽवमागतः //
aho hi kālasya balam aho kālo hi durjayaḥ yatredṛśasya durgasya uparodho 'vamāgataḥ //
Alas—how great is the power of Time (Kāla)! Indeed Time is hard to overcome, for even such a formidable fortress has come under siege and constraint.
Though not explicitly about cosmic Pralaya, it presents the same Purāṇic principle: Kāla (Time) is irresistible and can bring even the strongest structures to decline, echoing the broader doctrine of inevitable dissolution.
It cautions rulers and householders against overreliance on material security (like forts, wealth, status). Rajadharma here implies preparedness, strategic prudence, and humility—recognizing that Time can overturn even the best defenses.
Architecturally, it underscores a Vastu-adjacent lesson: even a well-built durga (fort) is not absolute protection. Planning must include resilience, supply lines, and contingency—since siege (uparodha) can neutralize mere structural strength.