For instance, a mirror with a reflection in it is not only a mirror, but it is a mirror in which something is reflected. This means that it is occupied, it is not empty. When a person says "consciousness" he does not think of the original condition of it; he thinks only of the consciousness which is conscious of something. As soon as we distinguish between consciousness and that which it is conscious of we separate them, we see them as two things, just as we can separate the mirror from what is reflected in it.