4793. As the taste corresponds to the perception and affection of knowing, understanding, and growing wise, and as the life of man is in this affection, therefore no spirit or angel is permitted to flow into man's taste, for this would be to flow into the life which is proper to him. Yet there are roaming spirits of the infernal crew, more pernicious than others, who because they had accustomed themselves in the life of the body to enter into man's affections for the purpose of doing harm, in the other life also retain this desire, and strive in every way to enter into man's taste, and when they have entered into it they possess his interiors, that is, the life of his thoughts and affections, for as before said they correspond, and things which correspond act as a one. Very many at this day are possessed by these spirits; for there are at this day interior obsessions, but not as formerly exterior ones.
[2] Interior obsessions are effected by such spirits, and their quality may be seen if attention is paid to the thoughts and affections, especially to the interior intentions, which men fear to manifest, and which are so insane in some that unless they were restrained by external bonds, such as honor, gain, reputation, the fear of death and of the law, they would more than the obsessed rush into murder and robbery. Who and of what quality those spirits are who obsess the interiors of such men may be seen above (n. 1983).
[3] In order that I might know how this is, they were permitted to attempt to enter into my taste, which they endeavored to the utmost of their power to do; and I was then told that if they penetrated quite into the taste they would possess the interiors also, for the reason that the taste depends on these interiors by correspondence. But this was permitted only to the end that I might know how the case is with the correspondence of the taste; for they were instantly driven away from there.
[4] These pernicious spirits try especially to loose all internal bonds, which are the affections of what is good and true, and of what is just and fair, fear of the Divine law, and a sense of shame in doing harm to society and to one's country; and when these internal bonds are loosed the man is obsessed by such spirits. When they are not able to get into the interiors by persistent endeavor, they try to do so by magical arts, of which there are many in the other life wholly unknown in the world; and by means of them they pervert the memory-knowledges in the man, and apply those only which favor their foul desires. Such obsessions cannot be avoided unless the man is in the affection of good, and hence in faith in the Lord.
[5] It was also shown how they were driven away. When they thought that they were penetrating toward the interiors of the head and brain, they were conveyed along by excrementitious passages, and thence toward the externals of the skin; and they were then seen to be cast into a ditch full of liquid filth. I was informed that such spirits correspond to the dirty little pits in the outermost skin, where scall arises, thus that they correspond to scall.