Narada Purana — Purva Bhaga, Shloka 113
Graha–Ketu–Utpāta Lakṣaṇas: Solar/Lunar Omens, Comets, Eclipses, and Calendar Rules
पर्ववास्तूपवासादि कृत्स्नं चांद्रे ण गृह्यते । गृह्यते गुरुमानेन प्रभवाद्यब्दलक्षणम् ॥ ११३ ॥
parvavāstūpavāsādi kṛtsnaṃ cāṃdre ṇa gṛhyate | gṛhyate gurumānena prabhavādyabdalakṣaṇam || 113 ||
All observances—such as festival days (parvan), rites connected with dwellings and sites (vāstu), fasts, and the like—are to be determined by the lunar reckoning. The defining features of the years beginning with Prabhava are determined by the measure of Jupiter (Guru).
Sanatkumara (teaching Narada in the Moksha-dharma and calendrical context)
Vrata: upavāsa (fasting; general)
Primary Rasa: shanta
Secondary Rasa: none
FAQs
It links dharma-practice to cosmic order: vows, festival observances, and rites should be performed at the correct lunar times, showing that spiritual discipline is harmonized with sacred time (kāla).
Bhakti is made steady through regulated observance—fasts and holy days are not random but aligned to the lunar calendar, helping devotees maintain consistent vrata and worship with scriptural timing.
Vedāṅga Jyotiṣa (astronomy/astrology): lunar reckoning determines parvan and fasting schedules, while Jupiter’s measure is used to define the Prabhava-type year characteristics (samvatsara system).