Tithi-vicara
Determination of Tithi for Fasts, Parana, and Pitri Rites
तिथिप्रमाणं विप्रेंद्राः क्षपाकरदिवाकरौ । चंद्रार्कचारविज्ञानात्कालं कालविदो विदुः ॥ १७ ॥
tithipramāṇaṃ vipreṃdrāḥ kṣapākaradivākarau | caṃdrārkacāravijñānātkālaṃ kālavido viduḥ || 17 ||
Ô meilleurs des brāhmaṇas, la mesure d’une tithi est déterminée par la Lune et le Soleil. En connaissant les courses de la Lune et du Soleil, les connaisseurs du temps saisissent le temps lui-même.
Narada (teaching the assembled sages/brāhmaṇas)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It frames sacred observance as aligned with cosmic order: knowing tithi through Sun–Moon motion ensures vratas and rites are performed at the correct time, honoring ṛta (the lawful rhythm of the universe).
Bhakti practices (fasts, pūjā, Ekādaśī-like observances) depend on proper timing; the verse supports devotion by grounding worship in accurate tithi reckoning rather than guesswork.
Jyotiṣa Vedāṅga: determining tithi and kāla by calculating/observing the Moon’s and Sun’s courses (candrārka-cāra), a key tool for calendrics and ritual scheduling.