This passive imagination certainly requires no assistance from volition, whether we are asleep or awake; it paints, independently of ourselves, what our eyes have seen; it hears what our ears have heard, and touches what we have touched; it adds to it or takes from it. It is an internal sense, acting necessarily, and accordingly there is nothing more common, in speaking of any particular individual, than to say, "he has no command over his imagination." In this respect we cannot but see, and be astonished at the slight share of power we really possess. Whence comes it, that occasionally in dreams we compose most coherent and eloquent discourses, and verses far superior to what we should write on the same subject if perfectly awake?--that we even solve complicated problems in mathematics? Here certainly there are very combined and complex ideas in no degree dependent on ourselves. But if it is incontestable that coherent ideas are formed within us independently of our will in sleep, who can safely assert that they are not produced in the same manner when we are awake? Is there a man living who foresees the idea which he will form in his mind the ensuing minute? Does it not seem as if ideas were given to us as much as the motions of our fibres; and had Father Malebranche merely maintained the principle that all ideas are given by God, could any one have successfully opposed him? This passive faculty, independent of reflection, is the source of our passions and our errors; far from being dependent on the will, the will is determined by it. It urges us towards the objects which it paints before us, or diverts us from them, just according to the nature of the exhibition thus made of them by it. The image of a danger inspires fear; that of a benefit excites desire. It is this faculty alone which produces the enthusiasm of glory, of party, of fanaticism; it is this which produces so many mental alienations and disorders, making weak brains, when powerfully impressed, conceive that their bodies are metamorphosed into various animals, that they are possessed by demons, that they are under the infernal dominion of witchcraft, and that they are in reality going to unite with sorcerers in the worship of the devil, because they have been told that they were going to do so. This species of slavish imagination, which generally is the lot of ignorant people, has been the instrument which the imagination of some men has employed to acquire and retain power. It is, moreover, this passive imagination of brains easily excited and agitated, which sometimes produces on the bodies of children evident marks of the impression received by the mother; examples of this kind are indeed innumerable, and the writer of this article has seen some so striking that, were he to deny them, he must contradict his own ocular demonstration. This effect of imagination is incapable of being explained; but every other