3717. Let a man thoroughly consider whether he is of such a quality, for he is now able to know. I speak from experience, for I conversed much with them; I felt their influx in all my sensation, and it was given me to know and perceive their endeavors, and the processes by which they act, besides a multitude of other particulars which cannot [here] be recited, for they act interiorly, and very many things were shown me solely by representations, as [for instance] what the quality was of their phantasies, which were not permitted to reach me, because so direful and horrible. These were almost wholly shown by representations, as when they wished to enter into my interiors, they would extend themselves naked upon their backs above my head, would roll themselves to the right and to the left, would curve themselves between their feet, would invert themselves with their head downwards, and their feet upwards, and so on, all which are their direful, magical, pythonic, and detestable phantasies, which were not allowed to infest me that that they might not cleave to my memory, and thus be seen by spirits. Besides these there were many other things done among themselves, which were not seen, but only heard, for the same reason.