Matsya Purana — War of Devas and Asuras; Birth of Aurva Fire; Countering Tamasī Māyā through ...
भगवन्नद्भुतमिदं संवृत्तं लोकसाक्षिकम् तपसा ते मुनिश्रेष्ठ परितुष्टः पितामहः //
bhagavannadbhutamidaṃ saṃvṛttaṃ lokasākṣikam tapasā te muniśreṣṭha parituṣṭaḥ pitāmahaḥ //
O Blessed One, this wondrous event has occurred with the world itself as witness. O best of sages, by your austerity the Grandfather (Brahmā) has been fully pleased.
This verse does not describe Pralaya directly; it emphasizes tapas (austerity) producing an extraordinary, publicly evident result that wins Brahmā’s satisfaction.
It highlights a core Purāṇic ethic: disciplined effort and self-restraint (tapas) lead to higher approval and auspicious outcomes—an ideal applicable to rulers and householders as disciplined governance and regulated living.
No Vāstu or iconographic rule is stated here; the ritual takeaway is that tapas functions as a potent spiritual discipline capable of generating visible, community-recognized results and divine favor.