4771. [4802] CONCERNING THE TEETH. (Several times were with me those who attempted to induce a gnashing of the teeth; and I became aware that such seem to themselves to be in certain hells. especially where those are who have impressed themselves with natural falses, and have confirmed themselves in them, and drawn [thence] many inferences, and who from those things reason about spiritual things in the other life: for there is not any correspondence [between these natural falses and spiritual truths] but, they clash: hence the grating of the teeth.)