Matsya Purana — Nārāyaṇa as Haṃsa in the Cosmic Ocean: Vedic Yajña-Puruṣa and Mārkaṇḍeya’s Vi...
सद्वृत्तमास्थिताः सर्वे वर्णा ब्राह्मणपूर्वकाः चत्वारश्चाश्रमाः सम्यग् यथोद्दिष्टा मया तव //
sadvṛttamāsthitāḥ sarve varṇā brāhmaṇapūrvakāḥ catvāraścāśramāḥ samyag yathoddiṣṭā mayā tava //
All the social orders—beginning with the Brāhmaṇas—are established in right conduct; and the four stages of life, too, have been correctly set forth for you by me, just as prescribed.
This verse is not about pralaya; it summarizes the Purāṇa’s dharma teaching: society and spiritual life are sustained through sadācāra (right conduct) and the regulated four āśramas.
It frames governance and household life within varṇa–āśrama order: a king protects social stability by upholding righteous conduct, while a householder follows the gārhasthya duties as part of the four-āśrama system taught to Manu.
No direct Vāstu or iconographic rule appears here; the ritual takeaway is broader—proper rites and disciplines are to be performed according to one’s āśrama and varṇa, grounded in sadvṛtta.