प्रलय-त्रिविध-विभागः एवं प्राकृतप्रलय-वर्णनम्
तैस् तु द्वादशसाहस्रैश् चतुर्युगम् उदाहृतम् चतुर्युगसहस्रं तु कथ्यते ब्रह्मणो दिनम्
tais tu dvādaśasāhasraiś caturyugam udāhṛtam caturyugasahasraṃ tu kathyate brahmaṇo dinam
By those twelve thousand divine years, the Caturyuga—the cycle of the four ages—is declared. And a thousand such Caturyugas are said to form a single day of Brahmā, within whose vast order the universe rises and rests, sustained by the Supreme Lord, Viṣṇu.
Sage Parāśara (teaching Maitreya)
Speaker: Parasara
Topic: Derivation of caturyuga and Brahmā’s day from divine-year measures
Teaching: Cosmological
Quality: revealing
Creation Stage: Kalpa
Cosmic Hierarchy: Brahmanda
Concept: A caturyuga is defined by 12,000 divine years, and 1,000 caturyugas form a day of Brahmā—revealing the immense cosmic rhythm governed by the Supreme.
Vedantic Theme: Brahman
Application: Let contemplation of kalpa-scale time deepen vairāgya and stabilize bhakti beyond short-term anxieties.
Vishishtadvaita: Jagat is sustained within Brahmā’s day by the Supreme (Viṣṇu) as efficient and material cause, affirming real cosmos dependent on Him (śeṣa-śeṣin relation).
Vishnu Form: Para-Brahman
Bhakti Type: Shanta
Jagat Karana: Yes
This verse defines the four-yuga cycle as totaling 12,000 divine years, establishing the basic unit used to measure larger cosmic periods.
He states that Brahmā’s single day is made of 1,000 Caturyugas, linking human-era cycles to the vast calendar of cosmic creation and dissolution.
Even while describing Brahmā’s time-measures, the Purāṇic vision frames cosmic order as ultimately upheld by Viṣṇu as the supreme ground of reality and governance of the universe.