How the proposition comes in astrology

The basic ground of prediction lies in facts that how human beings behaves in their social life : there are some basic principles that gives rise to prediction in Astrology : As human beings behaves in their social life planets also do so : Nature of humans are having various or different quality : some people are by nature very helping religious soft spoken having patience some are by nature damaging and of evil nature : what create this nature: some are by nature from by birth evil they got their nature from their paternal or maternal hood but some people get from association of peoples after their birth : Here is a principle that makes propositions in astrology :Principle number 1 Naure of people also suggests the nature of planets : Benific planets are moon mercury Jupiter and  mars Saturn Venus are treated to be malefic planet and sun and moon always give result good except they are not debilated and  their nature becomes changed when they are debilated :this benific planets are by nature are good and give result as per sign they occupied if the sign is friendly it’s result are good if the sign is inimical then nature of planet becomes changed its own sign or exalted it’s good by nature : Principle number (2) when a person associates with evil person then it gives the result of evil star : it has been said that a person is known from his company he keeps : similarly the bad association with planet even melefic sign gives bad result of evil nature :  Rahu and Ketu are called in Hindu astrology flag of stars whom they associate : even upon inimical sign they changes the nature of people : Rahu in ascendent upon Leo sign gives rise to greedy people and this naure also make him liar because these two quality are interdependent : suppose a people is greedy then for the cause of greed he may be liar for fulfilment of the very cause of greed :: Sun upon cancer sign occupied in ascendent also makes person a liar : there are number of aspects of our human nature which makes propositions in astrology  and  from these propositions we predict in astrology