Matsya Purana — Inquiry into Yayāti’s Story and the Kacha–Devayānī Episode
*कच उवाच भवत्प्रसादान्न जहाति मां स्मृतिः सर्वं स्मरेयं यच्च यथा च वृत्तम् न त्व् एवं स्यात्तपसः क्षयो मे तत क्लेशं घोरतरं स्मरामि //
*kaca uvāca bhavatprasādānna jahāti māṃ smṛtiḥ sarvaṃ smareyaṃ yacca yathā ca vṛttam na tv evaṃ syāttapasaḥ kṣayo me tata kleśaṃ ghorataraṃ smarāmi //
Kaca said: By your grace my memory does not leave me; I can recall everything—what happened, and how it happened. Yet if this should mean the wasting away of my austerity (tapas), then I remember a suffering even more dreadful than that.
This verse does not discuss pralaya directly; it highlights how remembrance can arise through grace, alongside concern that spiritual power (tapas) might diminish as a consequence.
It underscores a dharmic principle relevant to all roles: seek clarity and knowledge, but remain vigilant about the ethical and spiritual cost—protecting one’s discipline (tapas) and integrity while pursuing outcomes.
No vastu, temple-building, or ritual procedure is specified; the focus is internal discipline—memory gained by favor and the potential loss of accumulated austerity.