“A simple way to understand the difference between concrete and abstract thought is to imagine saying to a child, “Good job! Want a treat?” The child would likely respond positively because it has learned that “good” and “treat” are positive words. That is concrete thinking: the ability to recognize direct associations in the present moment. But what if you said to the same child, “Good job! Would you prefer the short term joy of a food-based reward or the long term satisfaction of knowing you made good choices based on your intrinsic desire to be a responsible family member?” The blank stare you would likely receive might indicate an inability to comprehend abstract concepts such as joy and satisfaction, short and long term, family and responsibility.
When it comes to abstract and concrete concepts in art, we could say that concrete art relates only to itself. For example, a painting of a four-inch blue line titled “Four-Inch Blue Line” could be considered concrete since it objectively represents what it claims to be. But if that same painting were given a different title it might facilitate a contemplative experience for the viewer, thus becoming abstract. For example, titled “Sky” it might inspire a viewer to contemplate the general attributes of the color blue, or the nature of lines as they relate to horizons, or the meaning of words when juxtaposed with seemingly unrelated visual phenomena. (Defining Abstract Photography)”
On December 9th 2017 I posted “Forgotten” and 365 days later it would be surprising to see it again.