Matsya Purana — Dhruva as Cosmic Pivot: Motions of Sun–Moon–Planets
समुद्राद्वायुसंयोगाद् वहन्त्यापो गभस्तयः ततस्त्वृतुवशात्काले परिवर्तन्दिवाकरः //
samudrādvāyusaṃyogād vahantyāpo gabhastayaḥ tatastvṛtuvaśātkāle parivartandivākaraḥ //
From the ocean, through association with the wind, the Sun’s rays lift and bear the waters upward; thereafter, in due time, under the governance of the seasons, the Sun (Divākara) turns and shifts his course.
It does not describe Pralaya directly; it explains the orderly cosmic process—how waters are lifted from the ocean by sun-rays aided by wind, and how seasonal time governs the Sun’s shifting course.
By emphasizing ṛtu (seasonal order) and kāla (timely regulation), it supports the Purāṇic ethic of acting “in season”—planning agriculture, rituals, taxation, and charity in harmony with natural cycles.
No direct Vāstu rule is stated, but the verse reinforces the ritual principle of seasonal timing (ṛtu-kāla): many consecrations, festivals, and observances are prescribed according to the Sun’s seasonal movement.