Matsya Purana — Inquiry into Yayāti’s Story and the Kacha–Devayānī Episode
तान्पुनर् जीवयामास काव्यो विद्याबलाश्रयात् ततस्ते पुनरुत्थाय योधयांचक्रिरे सुरान् //
tānpunar jīvayāmāsa kāvyo vidyābalāśrayāt tataste punarutthāya yodhayāṃcakrire surān //
Then Kāvya (Śukra) revived them again, relying on the power of his sacred knowledge; and they, rising once more, resumed battle against the gods.
This verse is not about Pralaya; it highlights vidyā-bala (the power of sacred knowledge/mantra) as a force that can restore life and thereby alter the course of cosmic conflict.
Indirectly, it underscores that knowledge and disciplined spiritual power can be decisive—suggesting that rulers and householders should honor learned teachers and uphold right learning, since vidyā can protect, restore, and guide action in crisis.
No Vāstu or temple-architecture rule is stated here; the ritual takeaway is the Purāṇic emphasis on mantra-vidyā and its efficacy when properly mastered and applied by an authorized preceptor like Śukra.