Asimov, as mentioned previously, was an atheist.

The ending was a powerful metaphor of what it may mean to know all and how such an all knowing entity may act when there is no one else around to share this existence.

This story isn't about religion wherein the origin of life and all that exists is explained on the basis of faith. This is a story on how such an origin can take place in a setting of speculative fiction that doesn't push faith at all. I feel sorry for you that you couldn't enjoy the ending or understand Asimov for that matter.