What the overemphasis on the idea of content entails is the perennial, never consummated project of interpretation. And, conversely, it is the habit of approaching works of art in order to interpret them that sustains the fancy that there really is such a thing as the content of a work of art.
To understand is to interpret. And to interpret is to restate the phenomenon, in effect to find an equivalent for it.
It is always the case that interpretation of this sort indicates a dissatisfaction (conscious or unconscious) with the work, a wish to replace it by something else. Interpretation, based on the highly dubious theory that a work of art is composed of items of content, violates art. It makes art into an article for use, for arrangement into a mental scheme of categories.
What is important now is to recover our senses. We must learn to see more, to hear more, to feel more. Our task is not to find the maximum amount of content in a work of art, much less to squeeze more content out of the work than is already there. Our task is to cut back content so that we can see the thing at all.
Susan Sontag, Against Interpretation, 1961