Now let us consider some other aspects of the subject. Clearly what has to be accomplished by the dream-work is the transformation of the latent thoughts, as expressed in words, into perceptual forms, most commonly into visual images. Now our thoughts originated in such perceptual forms; their earliest material and the first stages in their development consisted of sense-impressions, or, more accurately, of memory-pictures of these. It was later that words were attached to these pictures and then connected so as to form thoughts. So that the dream-work subjects our thoughts to a _regressive_ process and retraces the steps in their development; in the course of this REGRESSION all new acquisitions won during this development of memory-pictures into thoughts must necessarily fall away. This then is what we mean by the dream-work. Beside what we have learnt of its processes our interest in the manifest dream is bound to recede far into the background; I will, however, devote still a few more remarks to the manifest dream, for, after all, that is the only part of the dream with which we have any direct acquaintance. It is natural that the manifest dream should lose some of its importance in our eyes. It must strike us as a matter of indifference whether it is carefully composed or split up into a succession of disconnected pictures. Even when the outward form of the dream is apparently full of meaning, we know that this appearance has been arrived at by the process of dream-distortion, and can have as little organic connection with the inner content of the dream as exists between the _façade_ of an Italian church and its general structure and ground-plan. At times, however, this _façade_ of the dream has a meaning too, reproducing an important part of the latent thoughts with little or no distortion. But we cannot know this until we have interpreted the dream and thus arrived at an opinion with regard to the degree of distortion present. A similar doubt obtains where two elements seem to be closely connected; such connection may contain a valuable hint that the corresponding elements in the latent dream are similarly related, but at other times we can convince ourselves that what is connected in thought has become widely separated in the dream.