With respect to dreaming, Dr. Ennemoser rejects the physiological theory, which maintains, that in sleep, magnetic or otherwise, the activity of the brain is transferred to the ganglionic system, and that the former falls into a subordinate relation. “Dreaming,” he says, “is the gradual awakening of activity in the organs of imagination, whereby the presentation of sensuous objects to the spirit, which had been discontinued in profound sleep, is resumed. Dreaming,” he adds, “also arises from the secret activity of the spirit in the innermost sensuous organs of the brain, busying the fancy with subjective sensuous images, the objective conscious day-life giving place to the creative dominion of the poetical genius, to which night becomes day, and universal nature its theatre of action; and thus the super-sensuous or transcendent nature of the spirit becomes more manifest in dreaming than in the waking state. But, in considering these phenomena, man must be viewed in both his psychical and physical relations, and as equally subject to spiritual as to natural operations and influences; since, during the continuance of life, neither soul nor body can act quite independently of the other; for, although it be the immortal spirit which perceives, it is through the instrumentality of the sensuous organs that it does so; for of absolute spirit without body, we can form no conception.” What is here meant seems to be, that the brain becomes the world to the spirit, before the impressions from the external world do actually come streaming through by means of the external sensuous organs. The inner spiritual light illumines, till the outward physical light overpowers and extinguishes it. But in this state the brain, which is the storehouse of acquired knowledge, is not in a condition to apply its acquisitions effectively; while the intuitive knowledge of the spirit, if the sleep be imperfect, is clouded by its interference. Other physiologists, however, believe, from the numerous and well-attested cases of the transference of the senses, in disease, to the pit of the stomach, that the activity of the brain in sleep _is_ transferred to the epigastric region. The instances of this phenomenon, as related by Dr. Petetin and others, having been frequently published, I need not here quote. But, as Dr. Passavant observes, it is well known that the functions of the nerves differ in some animals; and that one set can supply the place of another; as in those cases where there is a great susceptibility to light, though no eyes can be discovered.