The coin was marked with Caesar's, or the Emperor's image to signify ownership, image signifying ownership on many things then and now.

You're not expected to look beyond what the image signifies.

You don't have to think hard to figure out what these images signify.

But what do these images signify if the people who knew what the photographs and other documents meant die before passing on the knowledge?

But think about what the image of rain could signify.

The image of the sun signifies unity, as well as enlightenment and transparency from ignorance.

The images, of themselves, signify and reveal.

The images on quilts hanging outside slave quarters could signify if that particular place was a safe stop.

How, then, could a representation of Earth be extracted from all that, and just what viewpoint did the image on the screen signify?

What does this image signify in this context?