Retuning to Reproduction Forbidden

There are two heads looking at something in the distance. But it's a reflection. Where is the face? I suppose one interpretation is that we never can truly see. But if we look at this with the intention of discovering what it means, then we don't see the painting itself, but instead think of the question that has been raised.

According to Margritte: The mind sees two different senses. It sees, as with the eyes, and it sees a question (with no eyes). But the eye itself sees in the way that the hand grasps -- passing over many things which, through a lack of interest, nothing induces it to seize.

Seeing is an act, according to Magritte, in the course of which it can happen that a subject escapes our attention.