5717. There are some who not only relate to the most viscid substances of the brain, which are its excremental things, but also know how to infect them as if with poisons. When such spirits arrive they rush within the skull, and thence by continuity even into the spinal marrow. This cannot be felt by those whose interiors are not open. It has been given me plainly to feel the inroad, and also the effort to destroy me; but this was vain, because I was protected by the Lord. They strove to take away from me all the capacity of the intellect. I plainly felt their operation, and felt also pain from it, which however soon ceased. I afterward spoke to them, and they were compelled to confess whence they were. They said that they lived in dark forests, where they durst not injure their companions, because in that case their companions were allowed to treat them cruelly. Thus they are kept in bonds. They are ugly, having the face of a wild beast, and hairy. I was told that they are such as had formerly slain whole armies, as we read in the Word; for they rushed into the chambers of everyone's brain, and inspired terror, together with such madness that they killed each other. At the present day such spirits are kept shut up within their own hell, and are not let out. These too bear relation to deadly tumors of the head within the skull. It was said above that they rush within the skull and by continuity therefrom even into the spinal marrow; but be it known that it is only an appearance that the spirits themselves rush in, they being borne along outside by a way which corresponds to the spaces in question within the body, which is felt within as if there were an inroad. This sensation is caused by correspondence, from which their operation is easily brought to bear upon the man to whom it is directed.