सूर्यरथ-कालचक्र-आयनविभागः, संध्योपासनम्, देवयान-पितृयानम्, विष्णुपद-गङ्गावतरणम्
उभयोः काष्ठयोर् मध्ये भ्रमतो मण्डलानि च दिवा नक्तं च सूर्यस्य मन्दा शीघ्रा च वै गतिः
ubhayoḥ kāṣṭhayor madhye bhramato maṇḍalāni ca divā naktaṃ ca sūryasya mandā śīghrā ca vai gatiḥ
ระหว่างจุดปลายทั้งสองแห่งวิถีโคจร วงกลมแห่งสุริยะหมุนเวียนไป; ด้วยเหตุนั้นจึงเกิดกลางวันและกลางคืน และในความเคลื่อนไหวนั้นเอง ตามระเบียบที่ทรงกำหนด การดำเนินของพระอาทิตย์จึงกล่าวว่าบางคราวช้า บางคราวเร็ว
Sage Parāśara (teaching Maitreya)
Speaker: Parasara
Topic: Sacred geography and the celestial mechanics that regulate day/night and time in Jambudvipa
Teaching: Cosmological
Quality: authoritative
Cosmic Hierarchy: Lokas
Concept: Day and night arise from the Sun’s ordained revolution between terminal points, whose varying speed is governed by a higher cosmic order.
Vedantic Theme: Dharma
Application: Contemplate time as regulated order (niyati) rather than randomness, cultivating steadiness and reverence for dharmic rhythm.
Vishishtadvaita: Cosmic regulation is not impersonal: the ordered circuit implies a sovereign, intelligent governance compatible with the Lord as immanent ruler of the world-process.
Vishnu Form: Narayana
This verse links varying solar motion (manda/śīghra) to the structured, law-like order of the cosmos, explaining observable changes in the Sun’s course as part of a regulated celestial cycle.
Parāśara attributes day and night to the Sun’s revolving circuit between two limits of direction (kāṣṭhā), with the Sun’s circular movement producing the alternation of light and darkness.
Even when Vishnu is not named in the verse, the Purāṇic cosmology is presented as an expression of a supreme governing reality—where the Sun’s regulated motion reflects the sovereignty and sustaining order upheld by the Supreme.