There is nothing more humblng than to realize the fact that before we were born we didn't exist and after we die we won't exist.
It seems rather simple to the non-religious mind, but to the believer, it's a paradox that they can't quite grasp, for they are selfishly attached to existence and demand that there must be a creator and there must be more to life than what we have already been graciously given by God (our ancestors). We can exist though forever, through our offspring. The natural fact that humans will always be able to reproduce and continue life through progeny is what throws a major kink in the religious siphoning hose.