Transition in Indian astrology

Transit is the real time physical astrological influences arising from the connections made between the present placements by zodiacal sign and degree of the planets, luminaries and nodes, angles and houses in the birth chart for the individual or entity being studied.
At an y one period of time, transits from each of the luminaries and planets, to at least one or another of the houses (ideally, two, since both ascendant and solar houses should be separately tracked) in the birth chart will be active; and from time to time each luminary and planet will from different transits by aspects to planets, luminaries and other individual points in the birth chart.
Since the planets, luminaries and nodes each move through the entire zodiac in a fairly regular period of time specific to the planet, luminary or node concerned, all transits are cyclical in nature; and the cycles of the luminaries, moon’s nodes and planets from mercury to Saturn are repeated in their entirely on multiple occasions in the average life time of a human being. The period of Uranus is 84 years, so only those who live to this age or greater will experience its complete cycle of transits to the factors in their birth charts. The periods of Neptune and Pluto extend to approximately twice and thrice time (Respectively) the average life span of a fortunate human being; and therefore each of us will only ever experience a certain portion of the full cycle of Neptune and Pluto transits to our horoscope chart.
The mean geocentric periods of the different luminaries and planets are approximately:Moon-29.6 days, Mercury and Venus-365.24days (Since mercury and venus are within the earth’s orbit they always appear to circuit the zodiac at the same average rate as the Sun);Mars-686.98days;Jupiter-11.68 years;Saturn-29.46 years,Uranus-84.01 years;Neptune-164.8 years,Pluto-247.7 years. These periods divided by twelve give the average amount of time that each luminary or planet takes to transit each sign, and therefore on average (allowing for different house sizes) each natal house.However, because of eccentricities to their orbits and factors connected with the movement of the earth relative to the Sun., the planets do not all move through each sign in the same amount of time. The apparent speed of the Moon changes considerably; it takes sometimes as little as just over 48 hours to transit a sign; other times well over 60 hours. Pluto takes over twice as many years to transit some signs as it takes to transit ones on the opposite side of the zodiac, and has been in the fastest-moving part of its cycle in our lifetimes. Transits to the planets, luminaries, nodes and angles operate by means of aspects, in exactly the same manner as aspects in the birth chart, except that they are transient (temporary) rather than radical (life long) influences.
However, whereas in Vedic or Indian astrology quite large allowances are made for the orbs of influence of the different types of aspects, where aspects by transit are under consideration the orbs allowed are very much smaller. Opinions vary as to the size of allowable orbs for transiting aspects, but their effects will be felt most strongly when they are exact to within just one degree. This applies right across the board for all the major aspect types. It is perhaps advisable to allow three degrees for conjunctions and oppositions; two degrees for squares and trines, and no more than one degree for sextiles,semisquares,sesquiquadrates,quincunxes,semisextiles,quintiles and biquintiles.All other type of aspects are best disregarded as immaterial.
While a luminary or planet is aspecting by transit a celestial body, angle or node in the horoscope or birth chart, the transit will be experienced as the transiting body exerts a temporary influence, corresponding to its general nature and the types of aspects formed., upon the features of personality, body and psychology governed by the aspected point in the birth chart. Whatever the nature of the influence, it will adjust the condition of the aspected point in the birth chart while it lasts, and may variously offset, clash with, harmonise with or accentuate the effects of the natal aspects and sign and house position of this point.
Transits by the planets from mercury to Pluto are more complex events than the straight direct passes through the zodiac evidenced by the Sun and the Moon, involving repeated periods of slower retrograde motion in the reverse direction through the signs and degrees of the zodiac, interspersed with the more rapid direct motion in the normal direction through the zodiac. Whenever one of these planets ceases to move in direct motion and turns retrograde. When it ceases to move in retrograde motion, it comes to a halt again, and is said to station direct. When a planet is close to one of its stations, and is said to station direct. When a planet is close to one of its stations, it moves very slowly, and any aspect it forms by transit to a point in the birth chart will last much longer than it does on average. When a planet stations within aspecting orb (especially within one degree)of a point in the birth chart, the effect of the aspect by transit will be not only much longer-lasting but also more strongly and keenly felt than a regular passing-by transiting aspect of the same type between the same bodies.
When transiting planets turn retrograde, they very commonly form in retrograde motion the same transiting aspect they recently made in direct motion to a particular point in the birth chart. At this point, the same issue highlighted in the life of the individual affected during the first direct motion pass will be brought into focus again, but usually with a sense that there is more still to be done to resolve them. Then when the transiting planet involved turns direct once more and forms the same aspect in direct motion for a second and final time, the issues concerned will meet with their final outcome as affected by the transit that has been ongoing. Occasionally the outer planets such as Neptune and Pluto then turn retrograde again and move far enough back through the degrees of the zodiac to form the same aspect by transit in retrograde motion for a second time. When this happens, it will be experienced as a further recurrence of the issues highlighted by the particular transit concerned being brought into focus in a manner suggestive of slight backtracking or a lack of complete resolution. And then on the third direct pass of the transit the issues or activities will finally be definitively resolved as far as they are going to be the transit that has been in progress.
Transits to the houses exactly resemble natal chart placements of planets and luminaries in the houses. When a real time planet or luminary occupies a zodiacal sign and degree placements that fall within the area of the zodiac spanned by a particular house in the birth chart, then the transit of that planet or luminary to that house is effective. Within three degrees of the cusp of the next house, the planet and luminary concerned will exhibit some influence in the next house.