Matsya Purana — The Madana-Dvādaśī Vow and the Birth of the Maruts
कश्यपो व्रतमाहात्म्याद् आगत्य परया मुदा चकार कर्कशां भूयो रूपयौवनशालिनीम् //
kaśyapo vratamāhātmyād āgatya parayā mudā cakāra karkaśāṃ bhūyo rūpayauvanaśālinīm //
Kaśyapa, arriving through the greatness of the sacred vow (vrata) and filled with supreme joy, made the harsh woman once again endowed with beauty and youthful charm.
This verse does not address Pralaya; it emphasizes the transformative efficacy of vrata (vowed observance) and its merit, shown through Kaśyapa’s restoring power.
It highlights the Matsya Purana theme that disciplined vows and dharmic observances can purify conditions and restore auspiciousness—an implicit encouragement for householders (and rulers) to uphold vrata, self-restraint, and religious duty to improve life and society.
No Vastu or temple-architecture rule appears here; the ritual takeaway is the proclaimed “vrata-mahātmya”—the potency of vowed practice to bring about auspicious transformation.