Matsya Purana — Cosmic Architecture of Sun–Moon and the ‘Houses of the Gods’
नक्षत्रेषु च युज्यन्ते गच्छन्तो नियतक्रमात् चन्द्रार्कग्रहनक्षत्रा नीचोच्चगृहमाश्रिताः //
nakṣatreṣu ca yujyante gacchanto niyatakramāt candrārkagrahanakṣatrā nīcoccagṛhamāśritāḥ //
Proceeding in a fixed order, the Moon, the Sun, the planets, and the nakṣatras are yoked in their course to the nakṣatras, abiding by their assigned stations of debilitation (nīca) and exaltation (ucca).
It does not describe pralaya directly; it emphasizes cosmic order—regular, rule-bound motion of luminaries and planets—which the Purana presents as part of the maintained structure of the universe.
By highlighting fixed planetary and nakshatra order (including exaltation/debilitation), it supports choosing proper timings (muhūrta) for royal decisions, rites, and household sacraments—an applied dharmic use of jyotiṣa.
The verse underpins ritual/temple and Vastu-related timing: graha–nakṣatra positions, especially uccha/ nīca states, are used to judge auspiciousness for consecrations, foundations, and major ceremonies.