सूर्यरथ-कालचक्र-आयनविभागः, संध्योपासनम्, देवयान-पितृयानम्, विष्णुपद-गङ्गावतरणम्
तेजसी भास्कराग्नेये प्रकाशोष्णस्वरूपिणी परस्परानुप्रवेशाद् आप्यायेते दिवानिशम्
tejasī bhāskarāgneye prakāśoṣṇasvarūpiṇī parasparānupraveśād āpyāyete divāniśam
太阳与火的两种光热之力,其本性即为照明与温热;由于彼此相互渗入,昼夜之间不断滋养并增强对方。
Sage Parāśara (teaching Maitreya)
This verse presents light and heat as mutually reinforcing cosmic powers—showing how the universe is sustained through coordinated functions rather than isolated forces.
By stating that these powers increase “day and night,” Parāśara frames cosmic regularity (cycles like divā-niśam) as an ongoing, dependable structure within creation.
Even when Vishnu is not named, the Purana’s cosmology implies that such sustaining principles (light/heat and their harmony) operate under Vishnu’s supreme governance as the underlying reality of the world-order.