De Somniis (lib. i-ii)

since where could any find a more venerable and holy abode for God amid all existing things, than the mind fond of contemplation, which is eager to behold every thing and which does not, even in a dream, feel a wish for sedition or disturbance?

And again, the invisible spirit which is accustomed to converse with me in an unseen manner prompts me with a suggestion, and says, O my friend, you seem to be ignorant of an important and most desirable matter which I will explain to you completely; for I have also in a most seasonable manner explained many other things to you also.