One of my favorite icons is not a traditional icon at all, but a wooden Good Shepherd puzzle-thing. Here He is:
You see how the little sheep fits perfectly and snugly into His arms? There is no other sheep that could fit just that way into that loving embrace.
If the sheep leaves the Shepherd, it looks like this:
See how the poor litttle sheep is all alone and defenseless?
See how the Shepherd has a sheep-shaped hole right in His middle?
The Shepherd has that special place for every one of us.
Just as we have a "God-shaped hole" in our lives...I believe the Shepherd is waiting and saving our own special seat for us, too.