The genuine mystic is purified and illuminated by, and eventually united to, a personal God. From this loving union flows a loving knowledge, a “secret wisdom” that short-circuits the memory and stupefies the intellect because it surpasses abstract, conceptual knowledge. Although we can dispose ourselves to receive it, human effort alone cannot bring it about because it is strictly God’s gift.
— Harvey D. Egan, from the introduction to
An Anthology of Christian Mysticism,