The Narration of the Trayodaśī Vow Observed Throughout the Twelve Months
शुभयोगः शतर्क्षं च शनौ कामे मधौ सिते । महामहेति विख्याता कुलकोटिविमुक्तिदा ॥ १५ ॥
śubhayogaḥ śatarkṣaṃ ca śanau kāme madhau site | mahāmaheti vikhyātā kulakoṭivimuktidā || 15 ||
When the auspicious Yoga coincides with the Śatabhiṣaj (Śatārkṣa) constellation—on a Saturday, in the month of Kāma (Phālguna) or Madhu (Caitra), during the bright fortnight—it is renowned as “Mahāmahā.” It is said to grant liberation to crores of one’s lineage.
Narada (in dialogue tradition with Sanatkumara lineage; presented as anukramanika-style instruction)
Vrata: Mahāmahā (as named in the verse)
Primary Rasa: adbhuta
Secondary Rasa: shanta
It highlights the Purāṇic idea that precise sacred timing (tithi–nakṣatra–vāra–māsa) can magnify the fruit of dharma, here promising lineage-wide uplift and liberation (kula-koṭi-vimukti) through the Mahāmahā occasion.
While the verse is framed in Jyotiṣa terms, its intent supports bhakti-centered observance: choosing an especially auspicious time for worship/vows so that devotion performed then yields expanded spiritual merit and mokṣa-oriented results.
Jyotiṣa (Vedāṅga astrology): it uses nakṣatra (Śatabhiṣaj), vāra (Saturday), māsa (Kāma/Phālguna and Madhu/Caitra), and pakṣa (bright fortnight) to define an auspicious yoga named Mahāmahā.