Matsya Purana — Characteristics of Dvāpara and Kali Yugas
उत्पन्नाः कलिशिष्टेषु प्रजाः कार्तयुगास्तथा तिष्ठन्ति चेह ये सिद्धा अदृष्टा विहरन्ति च //
utpannāḥ kaliśiṣṭeṣu prajāḥ kārtayugāstathā tiṣṭhanti ceha ye siddhā adṛṣṭā viharanti ca //
Among the remnants of the Kali age there arise people who bear the qualities of the Kṛta (Satya) Yuga; and here as well the Siddhas, perfected beings, remain—unseen, moving about freely at will.
It does not describe Pralaya directly; it teaches that even within Kali-yuga’s remnants, higher (Kṛta-yuga-like) qualities can arise, and that Siddhas persist in the world, moving invisibly.
By implying that Satya-yuga virtues can still appear in Kali, it encourages rulers and householders to cultivate truthfulness, restraint, and dharma—creating conditions where noble conduct can manifest despite the age’s decline.
No Vastu or ritual rule is stated explicitly; the practical takeaway is that sacred disciplines and perfected lineages (Siddhas) are believed to endure in Kali, supporting continuity of authentic rites and traditions.