Matsya Purana — Yayāti and His Sons: The Exchange of Youth and Old Age
संकीर्णाश्चोरधर्मेषु प्रतिलोमचरेषु च पिशिताशिषु लोकेषु नूनं राजा भविष्यसि //
saṃkīrṇāścoradharmeṣu pratilomacareṣu ca piśitāśiṣu lokeṣu nūnaṃ rājā bhaviṣyasi //
When society is muddled in the ways of thieves, when people live by inverted conduct, and when the world is filled with flesh-eaters—then, indeed, you will become a king.
This verse is not about cosmic dissolution; it is a social-prophetic marker, describing moral collapse (adharma) as the backdrop in which Manu is foretold to assume kingship.
It frames kingship as arising amid social inversion—suggesting the king’s duty is to restrain theft-like conduct, correct pratiloma behavior, and restore dharma when norms have broken down.
No Vastu or ritual procedure is stated here; the focus is governance and societal ethics rather than temple-building or rites.