The Jews supposedly have an invisible G^d. But that’s a very shallow observation.
We close our eyes during the saying of the Sh’ma’ because we can only truly see when we blind ourselves.
A retired professor of philosophy (philosophers are trained to define anything), a friend of mine, got cataract. He couldn’t see things so sharp anymore. Suddenly he realized: When we over-describe something we lose the real thing that in reality is always fuzzy.
Judaism is not Buddhism. (Though, for many Jews, Buddhism is Judaism.) One hand clapping cannot be part of the Mosaic Tradition.
So, trying to imagine the unimaginable is not a Jewish thing, IMHO.
G^d created us, so He knows that we cannot envision Him. But He also knows that we can’t pray toward something we cannot visualize. So, He gave us all kinds of visuals to put in front of us, to pray to. Yet, He’s very clear about His demand that we shall not confuse those props with Him.
We can imagine G^d as a parent, loving us and sometimes telling us off.
We can imagine G^d as superhuman because we’re created in His image.
We can imagine G^d having a face to relate to and an ear to talk to.
We can imagine G^d as so vast that we can’t see the end of Him.
We can imagine G^d as so close that we can whisper to Him.
We can imagine G^d as being perfect as nothing else.
We can imagine G^d as believing in us as no one else.
Not only are we allowed to imagine something for G^d, we have no choice. Jews who say they have no image of G^d are deceiving themselves or you because G^d is also beyond ‘the unimaginable.’ When we try to imagine infinity, we run up a blank, but that’s an idol too. Ask most Orthodox Jews: “What do you imagine when thinking of G^d,” they’ll answer: “nothing.” But nothing is still too substantial to be a proper representation of G^d.
There are time-bound references not to what G^d would be but to what He did and does and will do. He preceded and created the world. He freed us from slavery in Egypt. He protects us and lets us miraculously survive throughout our powerless existence in the Diaspora. He is our G^d like He was our ancestors’ G^d. He judges us like a king; He loves us as a father, even: our groom. And we are like His firstborn. He doesn’t sleep nor slumber. He will save and redeem us all. But this is all circumstantial. These references hint at His ‘character’ but still don’t tell us Who He is.
The only way to properly see G^d is to realize what image you use and be aware that it’s just an image, not G^d. And, that’s the best we can do.