Matsya Purana — The Madana-Dvādaśī Vow and the Birth of the Maruts
यावद्वर्षशतं साग्रं जराशोकसमाकुला ततः सा तपसा तप्ता वसिष्ठादीनपृच्छत //
yāvadvarṣaśataṃ sāgraṃ jarāśokasamākulā tataḥ sā tapasā taptā vasiṣṭhādīnapṛcchata //
For a little more than a hundred years she remained, afflicted by old age and sorrow. Then, tempered by austerity, she approached Vasiṣṭha and the other sages and questioned them.
This verse does not describe pralaya directly; it highlights the Purāṇic method of seeking higher truth—after prolonged suffering and austerity, one turns to realized sages for authoritative guidance.
It models dharmic conduct: when afflicted by grief or uncertainty, one should practice self-discipline and then consult qualified teachers (like Vasiṣṭha) before making decisions—an ideal applicable to rulers and householders alike.
No explicit Vāstu or temple-ritual rule appears in this verse; its ritual takeaway is the primacy of tapas (austerity) and guru/ṛṣi consultation as prerequisites before undertaking major vows, rites, or sacred projects.