Everything serves that central purpose, the separation of the offered experience from the background of our real life.

When we have a painted garden before us, we do not want to pick the flowers from the beds and break the fruit from the branches.

The flatness of the picture tells us that this is no reality, in spite of the fact that the size of the painting may not be different from that of the windowpane through which we see a real garden.

We have no thought of bringing a chair or a warm coat for the woman in marble.

The work which the sculptor created stands before us in a space into which we cannot enter, and because it is entirely removed from the reality toward which our actions are directed we become esthetic spectators only.