Another thing is that faith is the eye to see the unseen. Physical optics are not the instruments to perceive God. He is a Spirit. We have to deal with Him as He is. But there's a better way of seeing.
Eyes can play tricks.
Plato the greatest of the Greek philosophers said that nothing is ever actually how it looks to us. God is invisible Spirit, and that's that. It is as useless arguing and expecting God to be what He isn't as to expect the moon to be made of green cheese. God is like that if we are to know Him. Wanting a God they can see has led people to vast mistakes.