"On the subject of demons, it is certain that their power was very great before the coming of Jesus Christ, since he calls them himself, the powers of darkness, and the princes of this world. It cannot be doubted that they had for a long time deceived mankind, by the wonders which they caused to be performed by those who devoted themselves more particularly to their service; that several oracles have been the effect of their power and knowledge, although part of them must be ascribed to the subtlety of men; and that they may have appeared under fantastic forms, which they assumed in the same way as the angels, that is to say, in aërial bodies, which they organized. The Holy Scriptures assure us even, that they took possession of the bodies of living persons. But Jesus Christ says too precisely, that he has destroyed the kingdom of the demons, and delivered us from their tyranny, for us possibly to think rationally that they still possess that power over us which they had formerly, so far as to work wonderful things which appeared miraculous; such as they relate of the vestal virgin, who, to prove her virginity, carried water in a sieve; and of her who by means of her sash alone, towed up the Tiber a boat, which had been so completely stranded that no human power could move it. Almost all the holy doctors agree, that the only means they now have of deceiving us is by suggestion, which God has left in their power to try our virtue.
"I shall not amuse myself by combating all the impositions which have been published concerning demons, incubi, and succubi, with which some authors have disfigured their works, any more than I shall reply to the pretended possession of the nuns of Loudun, and of Martha Brossier,[[663]] which made so much noise at Paris at the commencement of the last century; because several learned men who have favored us with their reflections on these adventures, have sufficiently shown that the demons had nothing to do with them; and the last, above all, is perfectly quashed by the report of Marescot, a celebrated physician, who was deputed by the Faculty of Theology to examine this girl who performed so many wonders. Here are his own words, which may serve as a general reply to all these kind of adventures:—A naturâ multa plura ficta, à Dæmone nulla. That is to say, that the constitution of Martha Brossier, who was apparently very melancholy and hypochondriacal, contributed greatly to her fits of enthusiasm; that she feigned still more, and that the devil had nothing to do with it.
"If some of the fathers, as St. Thomas, believe that the demons sometimes produce sensible effects, they always add, that it can be only by the particular permission of God, for his glory and the salvation of mankind.
"In regard to all those prodigies and those common spells, which the people ascribe to sorcery or commerce with the demon, it is proved that they can be performed only by natural magic, which is the knowledge of secret effects of natural causes, and several by the subtlety of art. It is the opinion of the greater number of the fathers of the church who have spoken of it; and without seeking testimony of it in Pagan authors, such as Xenophon, Athenæus, and Pliny, whose works are full of an infinity of wonders which are all natural, we see in our own time the surprising effects of nature, as those of the magnet, of steel, and mercury, which we should attribute to sorcery as did the ancients, had we not seen sensible demonstrations of their powers. We also see jugglers do such extraordinary things, which seem so contrary to nature, that we should look upon these charlatans as magicians, if we did not know by experience, that their address alone, joined to constant practice, makes them able to perform so many things which seem marvelous to us.
"All the share that the demons have in the criminal practices of those who are commonly called sorcerers, is suggestion; by which means they invite them to the abominable research of every natural cause which can do injury to others.
"I am now, sir, at the most delicate point of your question, which is, to know if our souls can return to earth after they are separated from our bodies.
"As the ancient philosophers erred so strongly on the nature of the soul—some believing that it was but a fire which animated us, and others a subtile air, and others affirming that it was nothing else but the proper arrangement of all the machine of the body, a doctrine which could not be admitted any more as the cause of in men than in beasts; we cannot therefore be surprised that they had such gross ideas concerning their state after death.
"The error of the Greeks, which they communicated to the Romans, and the latter to our ancestors was, that the souls whose bodies were not solemnly interred by the ministry of the priests of religion, wandered out of Hades without finding any repose, until their bodies had been burned and their ashes collected. Homer makes Patroclus, who was killed by Hector, appear to his friend Achilles in the night to ask him for burial, without which, he is deprived, he says, of the privilege of passing the river Acheron. There were only the souls of those who had been drowned, whom they believed unable to return to earth after death; for which we find a curious reason in Servius, the interpreter of Virgil, who says, the greater number of the learned in Virgil's time, and Virgil himself, believing that the soul was nothing but a fire, which animated and moved the body, were persuaded that the fire was entirely extinguished by the water—as if the material could act upon the spiritual. Virgil explains his opinions on the subject of souls very clearly in these verses:—
'Igneus est ollis vigor, et celestis origo.'
And a little after,