This is cut-paste from one of my discussion with a friend about advent of Religion/God.
We started with pagan gods, (which is quite logical ) basically we can say that we started believing in god as 'something' who can control what we cannot control like extremities of nature. but as human race developed mentally, we devised other means to save ourselves from nature ( like establishments were made near river to do away with drought and cities were built on higher elevation to check floods , to name a few..., and these things are done even now... nature can't be overtaken or abated so we still worship rain gods & the likes..) . So in most of the cases, the identity of GOD started with fear and in the others cases as a custom...When population increased, the emphasis on society and behavior started which was required for the smooth/controlled working of the society... Imagine a situation where everyone worshipping their own pagan gods which donot put any moral limitations on the people. After morality and virtues ( like kindness, love, peace, compassion, brotherhood, code of conduct for men and women, about different strata of society.. so on and so forth) are attached to religion, the need for social security (ppl living in groups want to grow their groups and feel secure with more and more no. of ppl who have the similar beliefs ) also started. I mean to say that by that time ppl have started living in much larger and more organized groups with leaders, territories and the belief defined, so the groups started protecting them by increasing their reach in terms of ppl and lands. One of the way is to annex the territory. But very gradually it would have been realized that it is not going to help in long run as the annexed societies and group will resurface because they will think that they have been enslaved and estranged from their own beliefs. A slower but effective way was to spread your thoughts. And the easier way was to spread your religion which is infact a set of belief in some supreme power and the customs with it. So wars were being fought on the basis of religion. By this time , no one caring about what a religion is, it has become to tool to govern god-fearing masses and to bring more in sphere of influence.The powerful lot were using god and religion to motivation the masses to fulfill their vested interests. But there is one more thing, for the masses, now there is something bigger than the king/leader/master which they can look upto, there is 'some' messiah who can save from the world's pain and agony, ( although no one can see HIM, but he seems to be the Robin hood...). Now god and religion have taken the connotations of 'Savoir' and 'Hope'. In the course, different free thinking individuals came from time to time to propound their philosophy and it had changed the beliefs and ideas of ppl and newer philosophy emerged, this caused the existing ones to fear and to plunder the new ideas. The religion by now turned to the power and the number games. But it kept the masses occupied and thats why Karl Marx has once very rightly said ' Religion is the opiate of the masses'. Every now and then similar questions were raised in different religion like what is truth or what is right code of conduct and what do we get on being moral and where will we go.... and why we have came to the world, hence, all the religions documented their answers and ppl preached them ( most of the time without analysing or understanding them).... I think that bringing some amount of morality to the masses ( although mostly by fear, not by logic) is the most significant achievement of religion. People also found some solace in religion and GOD mostly because they start believing in the philosophy of a religion. So the use/context/need/interpretation of god/religion changed as human race evolved.
Comments invited...