Devas , Mahadevas and God....... clearing the confusion

The first portion is a collection of hymns in praise of certain gods, as Agni, fire; Mitra, the sun; and so forth. They are praised and oblations are offered to them. I have said these hymns are to the gods. I have used the word gods until I make you familiar with the Sanskrit word Deva, because the word gods is very misleading. These Devas mean the "bright ones", and gods in India are less persons than positions. For instance, Indra and Agni are not names of particular persons, but particular posts in this universe. There is the post of President, the presiding post over certain elements, the presiding post over certain worlds, and so forth. According to these theologians, you and I — most of us — probably have been some of these gods several times. It is only temporarily that a soul can fill one of these positions. And after his time is over, he gives way; another soul is raised from this world by good works and takes that position — he becomes [for example] Agni. In reading Sanskrit philosophy or theology, people always get bothered by the changing of these gods. But this is the theory — that they are names of positions, that all souls will have to fill them again and again; and these gods, when the soul has attained to that position, can help mankind. So gifts and praise are offered to them. How this idea came to the Aryans we do not know, but in the earliest portion of the Rig-Veda we find this idea perfected and completed.


By the way ....After reading few things about various the religions, I think if i will ever retort to religion, hinduisam will be my only choice ,Because its the only religion which is scientific and gives logical answers to my questions.