Matsya Purana — War of Devas and Asuras; Birth of Aurva Fire; Countering Tamasī Māyā through ...
क्व दाराः क्व च संयोगः क्व च भावविपर्ययः नन्वियं ब्रह्मणा सृष्टा मनसा मानसी प्रजा //
kva dārāḥ kva ca saṃyogaḥ kva ca bhāvaviparyayaḥ nanviyaṃ brahmaṇā sṛṣṭā manasā mānasī prajā //
Where are ‘wives’ (as objects of possession), and where is union? Where is the reversal of feelings (passion turning into sorrow)? Surely this is a mind-born progeny—created by Brahmā through the mind alone.
It emphasizes creation as ‘mind-born’ (mānasī prajā) through Brahmā’s mind—highlighting a subtle, ideational mode of creation rather than physical generation; this supports Purāṇic cosmology where manifestation can arise from mental intention and can likewise be withdrawn.
It cautions that attachment (saṃyoga) and emotional reversal (bhāva-viparyaya) are unstable; a householder or king should perform duties without possessiveness, governing and living with restraint and clarity rather than being driven by fluctuating passions.
No direct Vāstu/ritual procedure is stated; the takeaway is conceptual—ritual and social forms (including marriage as a saṃskāra) should be approached with disciplined mind, since the text frames worldly bonds as mind-dependent constructs.