The same St. Augustine[408] acknowledges in the presence of his people that he had appeared to two persons who had never seen him, and knew him only by reputation, and that he advised them to come to Hippo, to be there cured by the merit of the martyr St. Stephen:--they came there, and recovered their health. Evodius, teaching rhetoric at Carthage,[409] and finding himself puzzled concerning the sense of a passage in the books of the Rhetoric of Cicero, which he was to explain the next day to his scholars, was much disquieted when he went to bed, and could hardly get to sleep. During his sleep he fancied he saw St. Augustine, who was then at Milan, a great way from Carthage, who was not thinking of him at all, and was apparently sleeping very quietly in his bed at Milan, who came to him and explained the passage in question. St. Augustine avows that he does not know how it happens; but in whatever way it may occur, it is very possible for us to see in a dream a dead person as we see a living one, without either one or the other knowing how, when, or where, these images are formed in our mind. It is also possible that a dead man may appear to the living without being aware of it, and discover to them secrets and hidden things, the result of which reveals their truth and reality. When a living man appears in a dream to another man, we do not say that his body or his spirit have appeared, but simply that such a one has appeared to him. Why can we not say that the dead appear without body and without soul, but simply that their form presents itself to the mind and imagination of the living person? St. Augustine, in the book which he has composed on the care which we ought to take of the dead,[410] says that a holy monk, named John, appeared to a pious woman, who ardently desired to see him. The saintly doctor reasons a great deal on this apparition;--whether this solitary foresaw what would happen to him; if he went in spirit to this woman; if it is his angel or his spirit in his bodily form which appeared to her in her sleep, as we behold in our dreams absent persons who are known to us. We should be able to speak to the monk himself, to know from himself how that occurred, if by the power of God, or by his permission; for there is little appearance that he did it by any natural power.