Matsya Purana — Dhruva as Cosmic Pivot: Motions of Sun–Moon–Planets
तथैव बाह्यतः सूर्यो भ्रमते मण्डलानि तु उद्वेष्टयन्वै वेगेन मण्डलानि तु गच्छति //
tathaiva bāhyataḥ sūryo bhramate maṇḍalāni tu udveṣṭayanvai vegena maṇḍalāni tu gacchati //
In the same manner, the Sun moves in the outer region, revolving through the celestial circles; indeed, swiftly winding around them, he proceeds along those orbits.
This verse is not describing Pralaya directly; it gives a cosmological account of the Sun’s swift revolution through celestial mandalas, supporting the Purana’s broader ordered-universe framework rather than dissolution.
Indirectly, it reinforces the idea of ṛta (cosmic order): just as the Sun follows a regulated course, kings and householders are expected to uphold regularity—timekeeping, calendrical rites, and disciplined governance aligned with dharma.
Ritually, the Sun’s mandala-motion underlies calendrical calculations for sacrifices, fasts, and temple festivals; architecturally, mandala language also resonates with sacred diagrams (vāstu/maṇḍala) used to align structures and rites with cosmic order.