Matsya Purana — Yayāti’s Fall
कुर्यामपूर्वं न कृतं यदन्यैर् विवित्समानः किम् उ तत्र साधुः ब्रुवाणमेवं नृपतिं ययातिं नृपोत्तमो वसुमानब्रवीत् तम् //
kuryāmapūrvaṃ na kṛtaṃ yadanyair vivitsamānaḥ kim u tatra sādhuḥ bruvāṇamevaṃ nṛpatiṃ yayātiṃ nṛpottamo vasumānabravīt tam //
“Let us first do something unprecedented—something not done by others before. If one seeks to know it and accomplish it, what fault is there in that?” Thus speaking to King Yayāti, the excellent king Vasumān addressed him.
This verse does not discuss Pralaya; it belongs to a dynastic/royal narrative where a king urges undertaking an unprecedented course of action.
It frames a kingly attitude of purposeful resolve—seeking knowledge and undertaking bold but ‘proper’ (sādhu) action—suggesting that initiative is commendable when aligned with righteousness.
No explicit Vastu, temple-building, or ritual procedure is mentioned; the emphasis is on counsel and motivation within a royal dialogue.