Regarding Gare's box image -- there again words are needed to convey what it's about. If you couldn't read the box labels what meaning would you gain from a group of boxes? Why do so many of the images supposedly of the concept of infinity use written words to get the meaning across? Why are all the old symbols constantly rehashed and no new symbols of infinity are created? You have to be told what all of them mean or you may just see them as connected shapes --- certainly not boundless shapes.

If you want to think outside the "box" you need to get rid of the box.