If you listen too or know a person with delusions long enough, eventually they will begin to make sense of their delusions and if you approach them the right way they will begin to make their delusions clear to you and everyone else.
Wormed, I didn't really know it either, but I've had inclinations about it in the same general direction, so I tried it out/on for size. Anyway it's a hell of a lot better way to look at it then the way the shrinks do.