They declare three portions from the Lagna, Hora Lagna, and Ghatika Lagna. Each portion is again divided threefold (into short, middle, and full life) to determine the Ayurdaya, the span of longevity. Afflicted portions yield short life; strong ones yield full life.
Verse 2 — The Three Pairs of Longevity
युग्मत्रयं विचारणीयम् — लग्नपत्यष्टमेशौ, चन्द्रशनी, लग्नहोरालग्नौ च ॥
yugma-trayaṃ vicāraṇīyam — lagna-paty-aṣṭameśau, candra-śanī, lagna-horālagnau ca
Three pairs are examined for longevity: the Lagna lord together with the eighth lord; the Moon together with Saturn; and the Lagna together with Hora Lagna. Each pair's mutual disposition — the sign-types they occupy relative to each other — yields one of three life-spans. Where pairs disagree, the strongest pair governs the verdict.
dve dvisvabhāve dīrghāyuḥ cara-sthirayor madhyam, itaratrālpāyuḥ
When both members of a longevity pair occupy dual signs, full (long) life is indicated; a combination of movable and fixed signs grants middle life; and when both fall in movable or both in fixed signs, short life is declared. This simple triad underlies all Jaimini lifespan judgement.
Verse 4 — Saturn — The Ayushkaraka
शनिरायुष्कारकः प्रधानः ॥
śanir āyuṣkārakaḥ pradhānaḥ
Saturn is the chief significator of longevity. His strength, dignity and freedom from affliction protect the life-thread; his debility or severe combustion weakens the very vessel of existence. In every ayur judgment Saturn's condition weighs as heavily as the pairs themselves.
Verse 5 — Eighth House — Seat of the Life-Span
अष्टमं आयुःस्थानं तदीशश्चायुर्दायकः ॥
aṣṭamaṃ āyuḥsthānaṃ tadīśaś cāyurdāyakaḥ
The eighth house is the seat of longevity and its lord distributes the allotted years. Benefics connected to the eighth extend the span through grace and healing; malefics there spend vitality early. Yet the eighth must be judged with the twelfth — the two 'invisible houses' jointly guard the term of embodiment.
Verse 6 — Lagna Strength Upholds the Body
लग्नबलं देहधारणं रक्षति ॥
lagnabalaṃ deha-dhāraṇaṃ rakṣati
Strength of the Lagna — by benefic occupation, aspect of its lord, or Jupiter's influence — upholds the body through crises that would otherwise prove fatal. A powerful ascendant converts even a short-life verdict into a survivable one, for vitality itself is medicine.
Verse 7 — Kakshya Reduction — Refining the Span
कक्ष्याभेदेन वर्षाणि ह्रस्वीक्रियन्ते वा वर्धयन्ति ॥
Within each life-class, subdivisions called kakshyas refine the exact years: benefic positions reduce the danger-zones while malefic kakshyas cut the promised span. The coarse verdict of short-middle-long is thus tuned to precise figures through these finer divisions.
Verse 8 — Maximum Human Term
द्वादशविंशतिवर्षाणि परायुः मानुषं परम् ॥
dvādaśaviṃśati-varṣāṇi parāyuḥ mānuṣaṃ param
One hundred twenty years is the paramayus — the outermost human term. No computation may exceed this limit; where methods yield more, the excess collapses into the maximum. All dasas, progressions and kakshyas operate strictly within this divinely fixed boundary.
Verse 9 — Khara and Madhya Years
खरं मध्यं च विभज्य आयुः परिमाणं ज्ञेयम् ॥
kharaṃ madhyaṃ ca vibhajya āyuḥ parimāṇaṃ jñeyam
After classifying life as khara (inauspicious-short), madhya (middle) or purna (full), the exact year-count follows from multiplying the base spans with planetary strengths. Roughly, short life ranges below thirty-three years, middle to sixty-six, and full beyond — boundaries softened by exceptional strength or weakness.
Verse 10 — Corroboration Before Declaration
बहुविधैरुपायैर्यदेकं फलं तदेव सत्यम् ॥
bahubhidhair upāyair yad ekaṃ phalaṃ tad eva satyam
Only that longevity result which multiple independent methods confirm should be declared. When the pairs, the special lagnas and Saturn's condition converge upon one figure, the astrologer may speak; where they scatter, silence or hedged language is the dharma of the jyotishi.