The influence of the antardasa ||41||

1Those planets which are in the upacaya-places from the ascendent or are in their own base triplicities, friends’ houses, or signs of exaltation, and are not depressed, have a very good influence in the fruition of their dasas; if they are in the opposite situations, their influence is worse.
2The times belonging to each of the planets within the dasas are called antardasas; dividing the influence of the lord of the dasas, they make a series depending on their positions.
3A planet in the same place (as the lord of the dasas) possesses a half of its period (as its antardasa); one in the fourth place, a fourth; one in the fifth, a third; one in the ninth, a sixth;
4And a planet in the eighth place from that occupied on its course by the planet (which is lord of the dasas), a seventh. The sub-periods of the antardasas are to be known by the order of (the planets’) strengths and dasas (vayas).
5If a malefic planet obtains a portion of an antardasa, it is to be known as worthless and always giving rise to bad consequences; but if a benefit does this, it removes the influence of the bad dasa and establishes the best results.
6Through the occupancy of each other’s houses, navamsas, and dvadasamsas, and through their mutual aspects and conjunctions, (the planets) cause the fulfillments of the results of actions to be auspicious, terrible, crooked, honest, or harsh in their dasas.
7The da.6 of the ascendant belongs to the lord of the sign and the lord of the navamsa (which are rising); the characters of the natives are to be determined by means of their qualities. The time of the end of the native’s life is called the antara; it gets that name thus.
8The enemy of the lord of the ascendant causes the loss of his life during its sub-period (vipaka = antardasa) (during the dasa of the ascendant), and (from the antardasa) it is called the antara. But a friend (of the lord of the ascendent), (in an antardasa) in this (dasa) gives good results and has whatever is its own influence on the bodies (of men).
9Whatever influence (of a planet’s dasa) has arrived, but is obstructed by another (planet’s antadasa), though it be desired and already bestowed, it is destroyed; but if the influence of the dasa is known to possess temporal strength, then it attains perfection whether it is good or bad.
10If, in any (dasa), the (antar)dasa is doubtful, then that (dasa) is thought to exercise its indicated influence in full; and if (a planet) has increased strength at the nativity, it quickly destroys (the influence) coming from another (planet’s) astakavarga.
11Thus are the influences of the fruitions of the dasas for men; good and bad, they follow along in order. They take hold of the mind, and are useful in determining when to undertake actions.
12One who looks with knowledge which is full of various investigations, rules, skills, and instructions, considering whatever was determined in a dasa, should predict just that result or what is like it.
13The embodied (soul), being in the dasa (of the ascendent), when the sub-period (vipaka = antardasa) has a bad influence, on the last day loses its power of action and, impelled by diseases arising from the planets according to the rules, leaves the body and goes forth.
14I shall here describe the diseases of the planets and signs, which have natures like those of their sources; by them are dissolved the bodies of mortals when they die, by means of the causes of disease (nidanas) which depend on the power of their lords.