The Church did not know what to do.

Either it must keep silent or reveal the possibility of the evocation of the dead, already forbidden by Moses, and this admission was dangerous, for it popularized the knowledge of acts that are easier to produce now than formerly, since without knowing it Spiritism has traced the way.
"So the Church has kept silent.

And Rome is not unaware of the frightful advance incubacy has made in the cloisters in our days." "That proves that continence is hard to bear in solitude," said Des Hermies.
"It merely proves that the soul is feeble and that people have forgotten how to pray," said Carhaix.
"However that may be, messieurs, to instruct you completely in this matter, I must divide the creatures smitten with incubacy or succubacy into two classes.

The first is composed of persons who have directly and voluntarily given themselves over to the demoniac action of the spirits.
These persons are quite rare and they all die by suicide or some other form of violent death.

The second is composed of persons on whom the visitation of spirits has been imposed by a spell.