Depth of field or depth of image?

At tech we are all told that depth of field is basically the depth of the area which the photographer chooses to be in focus or place emphasis upon. this can vary between shallow and infinite depth of field.
BUT....
At tech we cannot be taught to SEE the depth of an image. That depth being the emotional and truthful meaning behind the image. This is different for each person and can and will develop with age and experience.

So, what is visible in this image? Lots of pairs of takkies balancing on a tight rope with the middle bunch in focus.
BUT.....

What can be SEEN in this image?


Image by: Werner Traut, WT Photography