The Exposition of the Dvādaśī Vow for the Twelve Months
Dvādaśī-vrata-nirṇaya and Mahā-dvādaśī Lakṣaṇas
यदा तु धवले पक्षे द्वादशी स्यान्मधान्विता । तदा प्रोक्ता जया नाम सर्वशत्रुविनाशिनी ॥ १०५ ॥
yadā tu dhavale pakṣe dvādaśī syānmadhānvitā | tadā proktā jayā nāma sarvaśatruvināśinī || 105 ||
Nhưng khi trong nửa tháng sáng, ngày Dvādaśī (mồng mười hai) trùng với tháng Madhu (Caitra), thì pháp hành ấy được gọi là Jayā—nghi lễ tiêu diệt mọi kẻ thù.
Narada
Vrata: Jayā (Dvādaśī observance)
Primary Rasa: shanta
Secondary Rasa: bhakti
It defines a specific sacred timing: when Dvādaśī in the bright fortnight coincides with the month Madhu (Caitra), the vrata is called Jayā and is praised for removing hostile forces and obstacles.
By highlighting a named Dvādaśī observance, it points to time-based devotional discipline—keeping a vrata on an auspicious tithi as a supportive practice for Vaiṣṇava devotion and spiritual protection.
It uses calendrical computation—tithi (Dvādaśī), pakṣa (śukla/bright fortnight), and māsa naming (Madhu/Caitra)—which aligns with Jyotiṣa (Vedāṅga astrology) for determining correct ritual timing.