Just because we can’t see something, that doesn’t mean it isn’t there.
Scientists are looking for the fundamental matter that everything is made of, something even smaller than quarks (which are smaller than atoms). They can’t see it yet, but they still think that it may exist.
We don’t see G-d. But He exists.
Why don’t we see Him? Because if we did, there wouldn’t be free choice. G-d wants us to have the satisfaction of knowing that we overcame challenges, that we chose freely to obey Him.
No free choice means a world of robots. Free choice means the independence of deciding to choose Him as our King.
But in a way, we are able to “see” Him. Not physically. G-d is beyond the physical; but He is also in the physical. He is everywhere. And via our physical world we can see Him.
When we look at the sun rising and setting every day, sustaining life, we see Him.
When we marvel at the miracle of our bodies, of our ecosystem, we see Him.
And when we observe events, in our own lives and in the world, we see Him orchestrating everything by Divine Providence.
When we open our eyes to His majestic and miraculous works of creation, we see Him.
And very soon we will experience the final Redemption, when G-d will be seen to us as clear as day. As the prophet states (Isaiah 30; 20) “Your Master will no longer hide, for your eyes will see your Master.”
May we see it now.