In the supposition that vampires veritably resuscitate, we may raise an infinity of difficulties on the subject. How is this resurrection accomplished? It is by the strength of the _revenant_, by the return of his soul into his body? Is it an angel, is it a demon who reanimates it? Is it by the order, or by the permission of God that he resuscitates? Is this resurrection voluntary on his part, and by his own choice? Is it for a long time, like that of the persons who were restored to life by Jesus Christ? or that of persons resuscitated by the Prophets and Apostles? Or is it only momentary, and for a few days and a few hours, like the resurrection operated by St. Stanislaus upon the lord who had sold him a field; or that spoken of in the life of St. Macarius of Egypt, and of St. Spiridion, who made the dead to speak, simply to bear testimony to the truth, and then left them to sleep in peace, awaiting the last, the judgment day. First of all, I lay it down as an undoubted principle, that the resurrection of a person really dead is effected by the power of God alone. No man can either resuscitate himself, or restore another man to life, without a visible miracle. Jesus Christ resuscitated himself, as he had promised he would; he did it by his own power; he did it with circumstances which were all miraculous. If he had returned to life as soon as he was taken down from the cross, it might have been thought that he was not quite dead, that there remained yet in him some remains of life, that they might have been revived by warming him, or by giving him cordials and something capable of bringing him back to his senses. But he revives only on the third day. He had, as it were, been killed after his death, by the opening made in his side with a lance, which pierced him to the heart, and would have put him to death, if he had not then been beyond receiving it. When he resuscitated Lazarus,[445] he waited until he had been four days in the tomb, and began to show corruption; which is the most certain mark that a man is really deceased, without a hope of returning to life, except by supernatural means.