Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
एकायनगतौ स्यातां सूर्याचन्द्रमसौ यदा । तयुते मंडले क्रांत्यौ तुल्यत्वे वै धृताभिधः ॥ १७४ ॥
ekāyanagatau syātāṃ sūryācandramasau yadā | tayute maṃḍale krāṃtyau tulyatve vai dhṛtābhidhaḥ || 174 ||
เมื่อดวงอาทิตย์และดวงจันทร์ดำเนินไปในอายนะเดียวกัน และในมณฑลนั้นค่าลองจิจูด (กรานติ) เท่ากัน โยคะนั้นเรียกว่า “ธฤตะ”
Sanatkumara (in dialogue with Narada)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It frames sacred time as measurable and intelligible through Vedāṅga Jyotiṣa, so that dharma and worship can be performed in harmony with cosmic order (ṛta).
By identifying a specific auspicious time-condition (Dhṛta), it supports bhakti practice through proper kāla-niyama—choosing suitable times for pūjā, vrata, japa, and other devotional observances.
Vedāṅga Jyotiṣa: determining a named yoga/time-condition via the Sun and Moon’s relative motion and the equality of their celestial longitudes (krānti) in the maṇḍala.