It is amazing that in the world of spirits, as also in the heavens, the very least qualities that occur and whatever kinds and species, keep to their own quarters, without ever changing them. When any spirits, or any angels, become present, or when anything appears, this happens each in its own fixed quarter. The quarters have relation to the human body, and when one knows where they are in relation to the body, one can tell who they are and what they are like. And even though dissimilar qualities do appear in the same quarter, still it can be learned unmistakably from other indications what something is, and what the spirits are like: for instance, [one knows] where the swamp is, where Gehenna is, where the unclean spirits are who are in the waste barrel, who constitute [the province of] the colon, and so on in all other cases.