Matsya Purana — Tārakāsura’s Austerity and Boon; Mobilization for War; Bṛhaspati’s Fourfold P...
ब्रह्मा चास्मै वरं दत्त्वा यत्किंचिन्मनसेप्सितम् जगाम त्रिदिवं देवो दैत्यो ऽपि स्वकमालयम् //
brahmā cāsmai varaṃ dattvā yatkiṃcinmanasepsitam jagāma tridivaṃ devo daityo 'pi svakamālayam //
And Brahmā, having granted him a boon—whatever he desired in his mind—went to Tridiva, the heaven of the Thirty-Three gods; and the Daitya too departed to his own abode.
This verse does not discuss pralaya; it highlights a common Purāṇic motif—Brahmā granting a boon and then returning to Svarga (Tridiva), while the Daitya returns to his own realm.
Indirectly, it underscores the ethical theme that outcomes follow from sanctioned grants and intentions (manas-īpsita). In royal/householder ethics, it warns that desires and sought “boons” (power, prosperity) shape one’s trajectory and should be pursued with restraint and dharmic intent.
No explicit Vāstu, temple-building, or ritual procedure is stated; the only technical term is cosmological—“Tridiva” (heaven), indicating the celestial destination after the boon is granted.