Jyotiṣa-saṅgraha: Varga-vibhāga, Bala-nirṇaya, Garbha-phala, Āyuḥ-gaṇanā
शुभैर्दृष्टः सवीर्योगे केंद्रस्थे चायुरर्थदः । स्वच्चोब्जे स्वर्क्षगैः सौम्यैः सवीर्येंगाधिपे तनौ ॥ ११२ ॥
śubhairdṛṣṭaḥ savīryoge keṃdrasthe cāyurarthadaḥ | svaccobje svarkṣagaiḥ saumyaiḥ savīryeṃgādhipe tanau || 112 ||
When a planet is aspected by benefics, endowed with its own strength, and placed in a kendra, it becomes a giver of longevity and prosperity. If it is clear and situated in its own sign or in exaltation, together with gentle benefics, and if the strong lord of the ascendant abides in the ascendant itself, then robust vitality is indicated.
Sanatkumara (in instruction to Narada, within a Moksha-Dharma framed discourse that includes Vedic technical sciences)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It frames worldly indicators like longevity and prosperity as outcomes of dharmic order (ṛta) readable through Vedāṅga Jyotiṣa—knowledge meant to support a steady life conducive to Dharma and ultimately Moksha.
Indirectly: by emphasizing stability of life (āyuḥ) and well-being (artha) through auspicious configurations, it supports a disciplined household or renunciate life where sustained Vishnu-bhakti and vows can be practiced without obstruction.
Vedāṅga Jyotiṣa: benefic aspects (śubha-dṛṣṭi), angular houses (kendra), planetary strength (vīrya), own sign/exaltation (svarkṣa), and the importance of a strong ascendant lord (lagneśa) for vitality and longevity assessment.