Here is another way to look at abstract or non-representational art. . . .Most of us appreciate the beauty of nature. Most of us appreciate art that makes us aware. perhaps in a heightened way, the beauty of nature, as the best realistic landscape art does. But why is NATURE beautiful? Well, among other things, it has to do with the colors and textures and forms and details and all the little details coming together into a majestic whole. Look at a tree, even a bare tree in winter. Look at the tracery of the limbs, like lacework.
Non-representational artists are trying to achieve a similar effect, working with fields of color, shapes, and designs. They don’t represent anything, anymore than tree branches represent anything. But the result, if done well, can still be beautiful and even sometimes awe-inspiring.
God, if we may say so, is an abstract artist. He created pure aesthetic forms when He designed the universe. He wasn’t representing anything other than His creative will.
This, however, is also the reason representational art is beautiful. In that book I did, Painters of Faith on the Hudson River school artists, I show how those highly-realistic and mostly devoutly Christian landscape painters justified their own approach by saying that they wanted to imitate God’s art.
So there is a sense in which abstract art, in the sense of pure design, is prior to representational art, and the same aesthetic principle justifies them both.