The Cloud of Unknowing

Meditations on the darkness that exists between God and men. The anonymous author wrote in the introduction:

Fleshly janglers, open praisers and blamers of themselves or of any other, tellers of trifles, ronners and tattlers of tales, and all manner of pinchers, cared I never that they saw this book. For mine intent was never to write such thing unto them, and therefore I would that they meddle not therewith; neither they, nor any of these curious, lettered, or unlearned men. Yea, although that they be full good men of active living, yet this matter accordeth nothing to them. But if it be to those men, the which although they stand in activity by outward form of living, nevertheless yet by inward stirring after the privy spirit of God, whose dooms be hid, they be full graciously disposed, not continually as it is proper to very contemplatives, but now and then to be perceivers in the highest point of this contemplative act; if such men might see it, they should by the grace of God be greatly comforted thereby.

Pseudo-Dionysius the Areopagite also known as Pseudo-Denys, was a Christian theologian and philosopher of the late 5th to early 6th century (writing before 532), probably Syrian, the author of the set of works commonly referred to as the Corpus Areopagiticum or Corpus Dionysiacum. The author pseudonymously identifies himself in the corpus as "Dionysios", portraying himself as the figure of Dionysius the Areopagite, the Athenian convert of St. Paul mentioned in Acts 17:34. This false attribution resulted in the work being given great authority in subsequent theological writing in both East and West, with its influence only decreasing in the West with the fifteenth century demonstration of its later dating.