In his _Theologia Moralis_ he speaks quite precisely when defining the technical nature of the sin witches commit in commerce with incubi.[42] [43] This opinion is also that of Martino Bonacina,[44] and of Vincenzo Filliucci, S.J.[45] “Busembaum has excellently observed that carnal sins with an evil spirit fall under the head of the technical term _bestialitas_.”[46] This is also the conclusion of Thomas Tamburini, S.J. (1591-1675); Benjamin Elbel, O.F.M. (1690-1756);[47] Cardinal Cajetan, O.P. (1469-1534) “the lamp of the Church”; Juan Azor, S.J. (1535-1603); “in wisdom, in depth of learning and in gravity of judgement taking deservedly high rank among theologians” (Gury); and many other authorities.[48] What a penitent should say in confession is considered by Monsignor Craisson, sometime Rector of the Grand Seminary of Valence and Vicar-General of the diocese, in his Tractate _De Rebus Uenereis ad usum Confessariorum_.[49] Jean-Baptiste Bouvier (1783-1854) the famous bishop of Le Mans, in his _Dissertatio in Sextum Decalogi Præceptum_[50] (p. 78) writes: “All theologians speak of ... evil spirits who appear in the shape of a man, a woman, or even some animal. This is either a real and actual presence, or the effect of imagination. They decide that this sin ... incurs particular guilt which must be specifically confessed, to wit an evil superstition whereof the essence is a compact with the Devil. In this sin, therefore, we have two distinct kinds of malice, one an offence against chastity; the other against our holy faith.”[51] Dom Dominic Schram,[52] O.S.B., in his _Institutiones Theologiæ Mysticæ_ poses the following: “The inquiry is made whether a demon ... may thus attack a man or woman, whose obsession would be suffered if the subject were wholly bent upon obtaining perfection and walking the highest paths of contemplation. Here we must distinguish the true and the false. It is certain that—whatever doubters may say—there exist such demons, incubi and succubi: and S. Augustine asserts (_The City of God_, Book XV, chapter 23) that it is most rash to advance the contrary.... S. Thomas, and most other theologians maintain this too. Wherefore the men or women who suffer these impudicities are sinners who either invite demons ... or who freely consent to demons when the evil spirits tempt them to commit such abominations. That these and other abandoned wretches may be violently assaulted by the demon we cannot doubt ... and I myself have known several persons who although they were greatly troubled on account of their crimes, and utterly loathed this foul intercourse with the demon, were nevertheless compelled sorely against their will to endure these assaults of Satan.”[53]