Matsya Purana — Yayāti’s Rule
यथाकामं यथोत्साहं यथाकालं यथासुखम् धर्माविरुद्धान्राजेन्द्रो यथार्हति स एव हि //
yathākāmaṃ yathotsāhaṃ yathākālaṃ yathāsukham dharmāviruddhānrājendro yathārhati sa eva hi //
The best of kings should pursue (and grant) enjoyments as desired, as strength permits, at the proper time, and in a manner that brings ease—yet only those pleasures that do not conflict with dharma; for he alone truly deserves them.
This verse does not address pralaya; it focuses on ethical governance, stating that royal enjoyment must remain within the bounds of dharma.
It teaches measured conduct: desires may be fulfilled, but only in proportion to one’s capacity, at appropriate times, and without violating dharma—an explicit standard for a king’s self-discipline and public example.
No direct vastu or ritual rule is stated; the takeaway is a general dharmic constraint that would also govern royal patronage of rituals, charities, and temple works.