How much easier it would be to follow God if we could just see Him. Just rest our eyes on Him once. The truth is that if we open our eyes, we can see He is all around us. We just fail to see and recognize the evidence.
There are so many things, like gravity for example, which we can not see, but that we know are real because we see their effects on the world around us. In the same way, we can not see God, but we can see Him at work in this world. He is making Himself known, and the proof is all around us.