Those who portray things to others only by words, and thus by combining scattered mental images, that is by speaking, as most people on earth do, cannot at all understand how spirits communicate their thoughts among themselves. And they can understand it all the less, the more they dwell on words and their own personal ideas. Neither can those who stick only to the most obvious meaning of words, or only to matters of the material memory, since only personal details are stored up in it. But they, rather, who have more universal mental images, withdrawn from material ones, can somewhat understand it.