Tithi-Nirṇaya for Vratas: Ekādaśī Rules, Saṅkrānti Punya-kāla, Eclipse Observances, and Prāyaścitta
चद्रोपरागे जुहुयाद्दशमे सोम इत्यृचा । आप्यायस्व ऋचा चैव सोमपास्त इति द्विज ॥ ५९ ॥
cadroparāge juhuyāddaśame soma ityṛcā | āpyāyasva ṛcā caiva somapāsta iti dvija || 59 ||
O twice-born one, at the time of a lunar eclipse one should offer oblations—at the tenth portion—with the Ṛgvedic verse beginning “soma”; and also with the verse “āpyāyasva”, performing the rite as the Soma-drinker.
Narada
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It frames the lunar eclipse as a potent ritual window where Soma-mantras and homa offerings are prescribed, turning an ominous celestial event into a dharmic act of sanctification and restraint.
Though primarily ritualistic, it supports bhakti indirectly by emphasizing disciplined Vedic worship (mantra and offering) during sacred times, cultivating reverence and steadiness of mind—qualities that mature into devotion.
Jyotiṣa (Vedāṅga astrology/astronomy) is implied through timing the rite at the “tenth” portion during a lunar eclipse, and Kalpa (ritual procedure) is reflected in the specification of mantras and homa performance.