Matsya Purana — Lineage of the Pitṛs
रुद्रस्यैका सितस्यैका जैगीषव्यस्य चापरा दत्ता हिमवता बालाः सर्वा लोके तपो ऽधिकाः //
rudrasyaikā sitasyaikā jaigīṣavyasya cāparā dattā himavatā bālāḥ sarvā loke tapo 'dhikāḥ //
One maiden was given to Rudra, one to Sita, and another to Jaigīṣavya. Those daughters bestowed by Himavat were all, in this world, pre-eminent in ascetic power (tapas).
This verse does not describe Pralaya; it highlights sacred lineage formation through Himavat’s daughters and emphasizes their exceptional tapas as a source of spiritual potency in the world.
It reflects the Purāṇic ideal that alliances (such as marriage) and family lines should be grounded in dharma and spiritual merit; for householders and rulers, honoring tapasvī lineages is portrayed as socially stabilizing and religiously auspicious.
No Vāstu or temple-building rule is stated here; the ritual takeaway is the Purāṇic valuation of tapas—spiritual discipline—as a qualifying power that sanctifies lineages and religious acts.