Matsya Purana — Brahmā–Gāyatrī as a Divine Pair and the Early Genealogies of Creation
स्वायम्भुवो मनुर्धीमांस् तपस्तप्त्वा सुदुश्चरम् पत्नीमेवाप रूपाढ्याम् अनन्ता नाम नामतः //
svāyambhuvo manurdhīmāṃs tapastaptvā suduścaram patnīmevāpa rūpāḍhyām anantā nāma nāmataḥ //
The wise Svāyambhuva Manu, having performed exceedingly difficult austerities, obtained as his wife a beautiful woman, named Anantā.
This verse does not describe Pralaya; it focuses on Manvantara-era lineage formation—how Svāyambhuva Manu, through tapas, gains a wife and thereby supports the continuation of creation through progeny.
It frames household life (gṛhastha) as grounded in discipline: tapas and self-mastery precede rightful marriage, suggesting that rulership and social order are sustained when leaders cultivate austerity and then enter dharmic household responsibilities.
No Vāstu or temple-building rule is stated here; the ritual takeaway is the Purāṇic emphasis on tapas as a legitimizing spiritual practice preceding major life transitions like marriage.