4143. CONCERNING THE MATERIALS OF WORDS. It happened that when I took certain words from my collection to insert them in what I was writing, and when for that purpose I took but a single word from the things which were not in my memory, there then occurred a change of spirits. Other spirits succeeded, and the former complained much and with no little lamentation that thus they could not be present but were driven away because something foreign had occurred to me. The reason was, that spirits succeeded who indulged in words, or the materials of speech, while the former were accustomed solely to thought. I was thus taught by experience that owing to a mutually contrary sphere these two classes of spirits could not be present together; for those who inhere in the materials of the Word take away the faculty of thinking from those who wish only to think. But the angelic spirits removed them, because they are within the sphere of thought and thus control the interiors of thought. But spirits wished to control the exteriors of thought, which power is now taken from them, because they act by persuasions. - 1749, February 17. Hence it appears that rational spirits cannot be present together with scientific, and that they are altogether distinct from each other.