Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
इत्येतद्गणितो किंचित्प्रोक्तं संक्षेपतो द्विज । जातकं वाच्मि समयाद्राशिसंज्ञापुरःसरम् ॥ १८७ ॥
ityetadgaṇito kiṃcitproktaṃ saṃkṣepato dvija | jātakaṃ vācmi samayādrāśisaṃjñāpuraḥsaram || 187 ||
Vậy đó, hỡi bậc nhị sinh, ta đã nói vắn tắt đôi điều về phép tính này. Nay, theo thứ tự thích hợp, bắt đầu từ các danh xưng của các rāśi (cung hoàng đạo), ta sẽ giảng về jātaka—thuật chiêm tinh lá số sinh.
Narada
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It frames Jyotiṣa as an ordered śāstric discipline—moving from gaṇita (calculation) to jātaka (application)—implying that right knowledge proceeds step-by-step and should be taught systematically.
Indirectly: by emphasizing disciplined learning and proper sequence, it supports the broader Purāṇic ideal that one should align life’s actions with dharma—an attitude that steadies the mind for Viṣṇu-bhakti even when studying technical sciences.
Vedāṅga Jyotiṣa: it signals a shift from mathematical astronomy/astrological computation (gaṇita) to natal horoscopy (jātaka), beginning with rāśi-saṃjñā (the technical nomenclature of zodiacal signs).