Laughter, as we have seen, is incompatible with emotion. If there exists a madness that is laughable, it can only be one compatible with the general health of the mind,—a sane type of madness, one might say. Now, there is a sane state of the mind that resembles madness in every respect, in which we find the same associations of ideas as we do in lunacy, the same peculiar logic as in a fixed idea. This state is that of dreams. So either our analysis is incorrect, or it must be capable of being stated in the following theorem: Comic absurdity is of the same nature as that of dreams.
The behaviour of the intellect in a dream is exactly what we have just been describing. The mind, enamoured of itself, now seeks in the outer world nothing more than a pretext for realising its imaginations. A confused murmur of sounds still reaches the ear, colours enter the field of vision, the senses are not completely shut in. But the dreamer, instead of appealing to the whole of his recollections for the interpretation of what his senses perceive, makes use of what he perceives to give substance to the particular recollection he favours: thus, according to the mood of the
