कालनिर्णयः (युग-मन्वन्तर-कल्पप्रमाणम्) — Measures of Time and Cosmic Cycles
संध्यासंध्यांशयोर् अन्तर् यः कालो मुनिसत्तम युगाख्यः स तु विज्ञेयः कृतत्रेतादिसंज्ञितः
saṃdhyāsaṃdhyāṃśayor antar yaḥ kālo munisattama yugākhyaḥ sa tu vijñeyaḥ kṛtatretādisaṃjñitaḥ
اے بہترین مُنی، سندھیا اور سندھیانش کے درمیان جو زمانہ ہے وہی ‘یُگ’ کہلاتا ہے، اور وہ کِرت، تریتا وغیرہ ناموں سے پہچانا جاتا ہے۔
Sage Parāśara (teaching Maitreya)
Speaker: Parasara
Topic: What portion is properly called a yuga between sandhyā and sandhyāṃśa
Teaching: Cosmological
Quality: authoritative
Creation Stage: Kalpa
Yuga: Satya/Treta/Dvapara/Kali
Concept: The yuga proper is the interval between sandhyā and sandhyāṃśa, and the named ages proceed as an ordered sovereignty under the Supreme Lord Viṣṇu.
Vedantic Theme: Brahman
Application: Anchor one’s sense of historical change in devotion to the Lord as the steady ruler of time, reducing anxiety about societal decline.
Vishishtadvaita: Viṣṇu is the inner ruler of cosmic order (niyantṛ) while the world and time remain real modes (prakāra) dependent on Him.
Vishnu Form: Narayana (cosmic)
This verse frames a yuga in relation to transitional “junction” periods (sandhyā and its portion), indicating that cosmic ages are measured with attention to their boundary-phases, not only their main duration.
Parāśara defines yuga as a specific measurable time-span connected to sandhyā and sandhyā-aṃśa, and identifies that yuga as taking the conventional names Kṛta, Tretā, and the remaining ages.
Although the verse is technical, the Vishnu Purana’s time-structure ultimately serves its theology: the ordered flow of ages and their names is part of the Supreme Lord Viṣṇu’s governance of cosmic law and rhythm.