1973. To describe all the kinds of visions would be too tedious, for there are many. For the sake of illustration, I may describe two visions, from which their character may be seen; and also at the same time how spirits are affected by the things which they see, and how evil spirits are tormented when the ability to see the things that others are seeing and hearing is stolen away from them, for they cannot bear to have any such thing taken away from them; for spirits have not the sense of taste, but in place of it they have a desire, or a kind of appetite, for knowing and learning. This is as it were their food by which they are nourished (see n. 1480). The nature of their distress, therefore, when this food is taken away may be seen from the example that follows.