It is hard to sustain such understanding ... all children believe at some point in Santa Claus, but that's only because they receive gifts (or fear punishment in the case of God) and they believe in general whatever the parents tell them to.

Einstein's theory wasn't believed by the public until it was proven.

So yes ... if God exists, our primary senses cannot perceive Him, and although I have reasons to believe He exists, all of them are subjective, but as our species evolves we may actually be able to.