2992. From much experience I have been given to know that in the natural world, and in its three kingdoms, not even the smallest thing exists which does not represent something in the spiritual world, that is, which does not have in that world something to which it corresponds. Among many other experiences the following has made this clear to me: Several times when I have been talking about the organs of the body and have been tracing the connection of them from the things of the head to those of the chest, and even to those of the abdomen, the angels above me have on those occasions led my thoughts through the spiritual things to which these parts of the body corresponded, doing so indeed in such a way that nothing was inexact. They did not think at all about the organs of the body as I was doing, only of the spiritual things to which those organs corresponded. The angels' intelligence is such that from spiritual things they know every single part of the body, even the most secret, which cannot possibly come to be known by man. Indeed they have a faultless knowledge of every single thing in the entire universe, and this they have because causes, and the first beginnings of causes, exist among those spiritual things.