Matsya Purana — Solar Dynasty Prelude: Vivasvān–Saṃjñā–Chāyā
*सूत उवाच विवस्वान्कश्यपात् पूर्वम् अदित्यामभवत् सुतः तस्य पत्नीत्रयं तद्वत् संज्ञा राज्ञी प्रभा तथा //
*sūta uvāca vivasvānkaśyapāt pūrvam adityāmabhavat sutaḥ tasya patnītrayaṃ tadvat saṃjñā rājñī prabhā tathā //
Sūta said: “Earlier, Vivasvān was born as a son to Aditi from Kaśyapa. Likewise, he had three wives—Saṃjñā, the queen, and also Prabhā.”}]}}
This verse does not describe Pralaya; it establishes genealogy—Vivasvān’s birth from Kaśyapa and Aditi—used in the Purāṇa to anchor later Manvantara and dynastic narratives.
Indirectly, it supports the Purāṇic model of dharma through lineage: royal/solar genealogies legitimize kingship and social duties by tracing rulers and divine figures back to recognized ancestral lines.
No Vāstu or ritual procedure is taught in this verse; its function is genealogical cataloging rather than temple architecture or rite-instruction.