1638. In one apparently single mental image, there are so many elements that no one can express [them all]
I was given living proof of this in one instance when I had just one mental picture of a matter, in which by itself I judged there was something brilliant, without knowing how or how much. An angel near me saw what was within the idea, and was amazed at how many elements it contained, namely, extraordinary symbolic displays, which, however, I could not see. I was only allowed to think in a more or less simple mental image, that there was something in it.