5558. There are spirits who, when they wish to know something, declare an idea to be true; and they declare this one after another in their community. As they do so they watch to see whether that declaration flows freely, unimpeded by any spiritual resistance to it. For when the idea is not true they usually notice some resistance coming from within. If no resistance to it is detected by them they suppose that the idea is true, and they have no other way of knowing it. Spirits like this are the ones who constitute the glands associated with the skin; yet there are two kinds of these spirits. The first kind affirm that the idea is true because the declaration they make appears, as stated, to flow freely, from which they assume, because there is no resistance to it, that it accords with the heavenly form and consequently with the truth. So it is affirmed by them. The second kind of those spirits boldly affirm, without knowing it to be so, that an idea is true.