सूर्यरथ-कालचक्र-आयनविभागः, संध्योपासनम्, देवयान-पितृयानम्, विष्णुपद-गङ्गावतरणम्
वह्निपादस् तथा भानुं दिनेष्व् आविशति द्विज अतीव वह्निसंयोगाद् अतः सूर्यः प्रकाशते
vahnipādas tathā bhānuṃ dineṣv āviśati dvija atīva vahnisaṃyogād ataḥ sūryaḥ prakāśate
So too, O twice-born, Vahnipāda enters the Sun during the days; through an intense conjunction with fire, the Sun therefore blazes forth in radiance.
Sage Parāśara (teaching Maitreya)
Speaker: Parasara
Topic: Explanation of reciprocal exchange between Sūrya and Agni across day and night
Teaching: Cosmological
Quality: authoritative
Cosmic Hierarchy: Lokas
Concept: Daytime solar brilliance is explained by an intense conjunction: Agni’s component (vahnipāda) enters and reinforces the Sun’s tejas.
Vedantic Theme: Dharma
Application: Use the image of mutual reinforcement to cultivate sādhana through wholesome associations that intensify clarity and vigor.
Vishishtadvaita: Portrays coordinated cosmic functions (sāmānādhikaraṇya of energies) suggestive of an underlying single governance, consonant with Viṣṇu’s niyantṛtva though implicit.
It explains solar brilliance as a regulated cosmic process: the Sun’s radiance increases through an intense association with the fire-principle (vahni), illustrating ordered administration of nature rather than randomness.
Parāśara frames it as a functional mechanism of the cosmos: during the day a fiery agency (Vahnipāda) enters/pervades the Sun, and that strong fire-connection is the immediate cause of the Sun’s manifest brightness.
Even when the verse discusses physical causation (fire and radiance), the broader Vishnu Purana context treats such cosmic operations as part of Vishnu’s sustaining order—nature functions as an instrument of the Supreme Reality’s governance.