248.  The speech of an angel or spirit with man is heard by him as audibly as the speech of man with man, yet by himself only, and not by others who stand near; and for the reason that the speech of an angel or spirit flows first into a man’s thought, and by an inner way into his organ of hearing, and thus moves it from within; while the speech of man with man flows first into the air and by an outward way into his organ of hearing, and moves it from without.  Evidently, then, the speech of an angel or spirit with man is heard within him; but as the organs of hearing are thus equally moved, the speech is equally audible.  That the speech of an angel or a spirit flows down from within even into the ear has been made clear to me by the fact that it flows also into the tongue, causing a slight vibration, but without any such motion as when the man himself by means of the tongue forms the sound of speech into words.

249.  But at the present day to talk with spirits is rarely granted because it is dangerous;{1} for then the spirits know, what otherwise they do not know, that they are with man; and evil spirits are such that they hold man in deadly hatred, and desire nothing so much as to destroy him both soul and body, and this they do in the case of those who have so indulged themselves in fantasies as to have separated from themselves the enjoyments proper to the natural man.  Some also who lead a solitary life sometimes hear spirits talking with them, and without danger; but that the spirits with them may not know that they are with man they are at intervals removed by the Lord; for most spirits are not aware that there is any other world than that in which they live, and therefore are unaware that there are men anywhere else; and this is why man is not permitted to speak with them in return.  If he did they would know.  Again, those who meditate much on religious subjects, and are so intent upon them as to see them as it were inwardly within themselves, begin to hear spirits speaking with them; for religious persuasions, whatever they are, when man dwells upon them by himself and does not adapt them to the various things of use in the world, penetrate to the interiors and rest there, and occupy the whole spirit of the man, and even enter into the spiritual world and act upon the spirits there.  But such persons are visionaries and enthusiasts; and whatever spirit they hear they believe to be the Holy Spirit, when, in fact, such spirits are enthusiastic spirits.  Such spirits see falsities as truths, and so seeing them they induce not themselves only but also those they flow into to believe them.  Such spirits, however, have been gradually removed, because they began to lure others into evil and to gain control over them.  Enthusiastic spirits are distinguished from other spirits by their believing themselves to be the Holy Spirit, and believing what they say to be Divine.  As man honors such spirits with Divine worship they do not attempt to harm him.  I have sometimes talked with them, and the wicked things they infused into their worshipers were then disclosed.  They dwell together towards the left, in a desert place.