You are never taken completely at a _nonplus_—summoned, as it were, out of a state of non-existence. It is easy for any one to try the experiment upon himself; that is, to examine every time he is waked up suddenly, so that his waking and sleeping state are brought into immediate contact, whether he has not in all such cases been dreaming of something, and not fairly _caught napping_. For myself, I think I can speak with certainty. It would indeed be rather odd to awake out of such an absolute privation and suspense of thought as is contended for by the partisans of the contrary theory. It would be a peep into the grave, a consciousness of death, an escape from the world of non-entity! The vividness of our impressions in dreams, of which so much has been said, seems to be rather apparent than real; or, if this mode of expression should be objected to as unwarrantable, rather physical than mental. It is a vapour, a fume, the effect of the ‘heat-oppressed brain.’ The imagination gloats over an idea, and doats at the same time. However warm or brilliant the colouring of these changing appearances, they vanish with the dawn. They are put out by our waking thoughts, as the sun puts out a candle. It is unlucky that we sometimes remember the heroic sentiments, the profound discoveries, the witty repartees we have uttered in our sleep. The one turn to bombast, the others are mere truisms, and the last absolute nonsense. Yet we clothe them certainly with a fancied importance at the moment. This seems to be merely the effervescence of the blood or of the brain, physically acting. It is an odd thing in sleep, that we not only fancy we see different persons, and talk to them, but that we hear them make answers, and startle us with an observation or a piece of news; and though we of course put the answer into their mouths, we have no idea beforehand what it will be, and it takes us as much by surprise as it would in reality. This kind of successful ventriloquism which we practise upon ourselves may perhaps be in some measure accounted for from the short-sightedness and incomplete consciousness which were remarked above as the peculiar characteristics of sleep.