What is it about?
Painting is an exercise in expression. It is in expression that new aesthetic ground is broken. Beauty cannot be found in a painting in which it is the target. Beauty is the result of an action. Not a purpose. I think this is why you can find such outrageous criticism of artists in their own time.
Turner was considered a controversial figure in his day, but is now regarded as the artist who elevated landscape painting to an eminence rivalling history painting.
His painting “Snow storm-steam boat off harbors mouth”, said on critic, looked like a some one spread currant jelly on the canvas. And so it goes.
I think that beauty is found in the seeking. The journey its-self is the slow scratching away at the surface. Revealing the seekers intent over time, and creating a context in which the viewer can enjoy the work.