Tithi-vicara
Determination of Tithi for Fasts, Parana, and Pitri Rites
शुक्ले पूर्वाह्णिके ग्राह्ये कृष्णे ग्राह्येऽपराह्णिके । अयनं दिनभागाढ्यं संक्रमः षोडशः पलः ॥ ३४ ॥
śukle pūrvāhṇike grāhye kṛṣṇe grāhye'parāhṇike | ayanaṃ dinabhāgāḍhyaṃ saṃkramaḥ ṣoḍaśaḥ palaḥ || 34 ||
Dalam pakṣa terang (Śukla), waktu yang patut diambil ialah pada sebelah pagi; dalam pakṣa gelap (Kṛṣṇa), waktu yang patut diambil ialah pada sebelah petang. Ayana dihitung dengan tambahan suatu bahagian hari, dan saṅkrama (peralihan suria) diukur sebanyak enam belas pala.
Sanatkumara (teaching Narada in a Vedāṅga/kalā-oriented discussion)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
It emphasizes dharmic precision: aligning rites with correct lunar fortnight and day-part is presented as a way to harmonize human action with cosmic order (kāla), strengthening the sanctity and efficacy of observances.
While technical, it supports bhakti-practice by guiding devotees to perform pūjā, vrata, and dāna at traditionally appropriate times—showing that devotion in the Purāṇic tradition is expressed through disciplined, time-conscious worship.
Vedāṅga Jyotiṣa (astral/timekeeping) is highlighted: selecting pūrvāhna vs aparāhna based on pakṣa, and defining calendrical markers like ayana and saṅkrama with specific time-units (pala).