Tithi-Nirṇaya for Vratas: Ekādaśī Rules, Saṅkrānti Punya-kāla, Eclipse Observances, and Prāyaścitta
ह्नासवृद्धिविशून्या चेत् ग्राह्यापूर्वा तथा परा । ज्येष्ठासंमिश्रितं मूलं रोहिणी वह्निंसंयुता ॥ १५ ॥
hnāsavṛddhiviśūnyā cet grāhyāpūrvā tathā parā | jyeṣṭhāsaṃmiśritaṃ mūlaṃ rohiṇī vahniṃsaṃyutā || 15 ||
হ্ৰাস-ৱৃদ্ধি নথকা অৱস্থাত পূৰ্বা আৰু পৰ—দুয়ো নক্ষত্ৰই গ্ৰাহ্য। জ্যেষ্ঠাৰ সৈতে মিশ্ৰিত মূল আৰু বহ্নি-যোগযুক্ত ৰোহিণী বিশেষভাৱে বিবেচ্য।
Sanatkumara (teaching Narada)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: bhayanaka
It frames Jyotiṣa as a dharmic support-system: by avoiding unstable ‘decline/increase’ conditions and noting sensitive star-combinations, one aligns ritual timing with cosmic order (ṛta), reducing obstacles to sacred acts.
Indirectly: bhakti-practices (vratas, pūjā, saṃskāras) are strengthened when performed at proper muhūrta; the verse supplies technical criteria so devotional acts can be undertaken with fewer impediments.
Vedāṅga Jyotiṣa—specifically muhūrta/electional rules using nakṣatras and their combinations (e.g., Pūrvā/Parā acceptability, and cautions about Mūla–Jyeṣṭhā and Rohiṇī with a fiery/Agni influence).