Matsya Purana — Characteristics of Dvāpara and Kali Yugas
ततः प्रजास्तु ताः सर्वा मांसाहारा भवन्ति हि मृगान्वराहान्वृषभान् ये चान्ये वनचारिणः //
tataḥ prajāstu tāḥ sarvā māṃsāhārā bhavanti hi mṛgānvarāhānvṛṣabhān ye cānye vanacāriṇaḥ //
Thereafter, all those beings indeed become flesh-eaters, consuming deer, boars, bulls, and other creatures that roam the forests.
It portrays a post-Pralaya condition where beings regress ethically, turning toward हिंसा (violence) and flesh-eating, indicating a decline in dharmic order after cosmic upheaval.
By highlighting a societal drift toward हिंसा and predation, it indirectly frames the king/householder’s dharmic role as restraining violence, protecting beings, and restoring order through righteous governance and disciplined living.
No direct Vastu or ritual procedure is stated; the verse is primarily ethical-cosmological, describing a change in conduct (diet and violence) rather than temple-building or rites.