Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
त्रयस्रेता द्वापरः द्वौ कलिरेकः प्रकीर्तितः । मनुकृताब्दसहिता युगानामेकसप्ततिः ॥ ६२ ॥
trayasretā dvāparaḥ dvau kalirekaḥ prakīrtitaḥ | manukṛtābdasahitā yugānāmekasaptatiḥ || 62 ||
तीन त्रेता-युग, दोन द्वापर-युग आणि एकच कलि-युग असे प्रकीर्तित आहे. मनूच्या निश्चित वर्षांसह युगांची संख्या एकाहत्तर सांगितली आहे.
Sanatkumara (teaching Narada)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It frames human history within a larger sacred chronology (yuga and manvantara), encouraging detachment from short-lived worldly events and turning the mind toward dharma and moksha within the limited span of time.
By stressing the changing conditions across yugas—especially the singular Kali-yuga—it implicitly supports the Purāṇic emphasis that in Kali, accessible practices like Vishnu-bhakti (nāma, smaraṇa, kīrtana) become primary means for spiritual progress.
It points to Jyotiṣa-style time-reckoning (kāla-nirṇaya): understanding yuga/manvantara measures used in Purāṇic astronomy and calendrical computation for interpreting scriptural chronology.