Strange is Astrology as single planet behave differently in same position, how's that ?

Astrology is really a beautiful knowledge imparted us by great Sages. The interpretation of the single placement is different, and that's the beauty of it. The resultant effects are the cumulative of the singular effects of the individual planet. In order to understand the reason of this, then one needs to understand all the parameters of astrology thru which an inference is made about the result or outcome of a planet.

The behavior of a person changes according to the environment he is in. Suppose a person is having a criminal neighbor then he will behave in one way, if he has a criminal person as his tenent then his behavior will be different to that of first case. Suppose a person having a criminal neighbor who pipe at his home daily, the person’s behavior will be more different then the first two cases. 

This same example can be repeated with the above three cases with a kind and good person as a neighbor where the person will be very happy and secured.His behavior will again be different towards positivity.

The same thing happens with the planets so the same planet gives different results under different circumstances.The nature of a planet can change due to below given factors :

1) Due to rashi/zodiac of that house
2) Due to the degree at which it is positioned in
3) The nakshtra on which the planet is positioned in
4) Due to the sub lord's position in the kundli/horoscope
5) Due to aspect of benefic or malefic 
6) Due to conjunctions with benefic or malefic
7) Due to combust accept mercury
8) Held between two malefic or benefic planets

 An astrologer has to study a planet from many different angle and then conclude its resultant effects. It is really a wonderful knowledge which if one study will keep on studying and studying as astrology is a very big ocean of knowledge. 

Every time you plunge into the ocean of knowledge, you come out with some thing. I personally call it as Dev Shastra as the knowledge of astrology is given by God to the Sages and from them to us.