A dream can be concerned with evacuation of an undesired thought, feeling, image, or with its storage. In either instance it must convert either an empirical external fact or an internal psychic reality into a form that renders it suitable for storage or evacuation. In this respect, too, it seems analogous to a digestive process. But is it? Or is it not that the ‘name’ of the process is similar to the ‘name’ of the digestive process? From where does this seeming similarity arise?