Matsya Purana — Soma
तेषु संवत्सरो ह्यग्निः सूर्यस्तु परिवत्सरः सोमस् त्विड्वत्सरश् चैव वायुश्चैवानुवत्सरः //
teṣu saṃvatsaro hyagniḥ sūryastu parivatsaraḥ somas tviḍvatsaraś caiva vāyuścaivānuvatsaraḥ //
Among these (five divisions of the year-cycle), the Saṃvatsara is Agni (Fire); the Parivatsara is the Sun; the Iḍvatsara is Soma (the Moon); and the Anuvatsara is Vāyu (Wind).
It does not describe Pralaya directly; it maps cosmic time (the five-year cycle) onto elemental deities, showing that time is understood as a divine, sustaining order rather than mere chronology.
By linking year-divisions to Agni, Sun, Moon, and Wind, it supports correct calendrical awareness for dharmic duties—timing of sacrifices, vows, festivals, taxation cycles, and state/household rites aligned with the Panchanga and seasons.
Ritually, it underpins choosing auspicious times (muhūrta) for homa (Agni), solar and lunar observances, and consecrations; architecturally, such time-knowledge is used when fixing dates for temple foundation-laying and prāṇa-pratiṣṭhā in Puranic/Vastu traditions.