Matsya Purana — The Sun-Vow
*नारद उवाच यदारोग्यकरं पुंसां यदनन्तफलप्रदम् यच्छान्तये च मर्त्यानां वद नन्दीश तद्व्रतम् //
*nārada uvāca yadārogyakaraṃ puṃsāṃ yadanantaphalapradam yacchāntaye ca martyānāṃ vada nandīśa tadvratam //
Nārada said: “Tell me, O Lord Nandīśa, of that vow (vrata) which brings health to people, bestows endless results, and grants peace to mortals.”
This verse does not discuss pralaya; it introduces a query about a vrata that grants health (ārogya), infinite merit (ananta-phala), and peace (śānti).
It frames vrata as a practical dharmic tool for householders (and rulers) to cultivate well-being, social harmony, and spiritual merit—health and śānti being key aims in Purāṇic ethical life.
The ritual significance is the emphasis on a specific vrata (vow/observance) as a means to attain ārogya, ananta-phala, and śānti; no Vāstu or temple-architecture rule is stated in this verse.