When I was in Nepal on a business trip, I asked my supplier, a well traveled and well educated man, about the multi-armed, animal headed gods that each family had a shrine for. He said that they knew that these were not depictions of the real god, just identities that they could relate through. It is the same with all religions - we have a depiction of god to help us relate. I think most people know there is no bearded old man in the sky. But the creator is beyond our comprehension so we use representations to gain a sense of identity.
Obviously, just an opinion.