Among the Gnostic treasures uncovered at Nag Hammadi in 1945 is this extraordinary spiritual narrative. In it, a third-century narrator known as Allogenes--the Foreigner--recounts a series of visions and divine revelations. He describes his spiritual progress: how he overcomes fear and ignorance and ascends into the divine realm as he experiences the transcendent Unknowable God. Karen King, a contributor to The Nag Hammadi Library in English, provides...