There is a demon, known as the deluder, who visits the brethren especially at dawn, and leads the intellect about from city to city, from village to village, from house to house, pretending that no passions are aroused through such visits; but then the intellect goes on to meet and talk with old acquaintances at greater length, and so allows its own state to be corrupted by those it encounters. Little by little it falls away from the knowledge of God and holiness, and forgets its calling. Therefore the solitary must watch this demon, noting where he comes from and where he ends up; for this demon does not make this long circuit without purpose and at random, but because he wishes to corrupt the state of the solitary, so that his intellect, over-excited by all this wandering, and intoxicated by its many meetings, may immediately fall prey to the demons of unchastity, anger or dejection—the demons that above all others destroy its inherent brightness.
~ Evagrios the Solitary, Texts on Discrimination in Respect of Passions and Thoughts 8
This passage is a bit long, but the insight is a remarkable one. I remember when I first read this thinking to myself, “Now, how does Evagrios know what goes through my head every morning?” Metaphysical questions regarding the nature of demons aside, in my case at least this ailment of the soul (and its cure) have proved to be quite true. Indeed, I never cease to be astounded by the insights of fourth century hermits in a “pre-scientific” age about the wonders of human psychology. Continue reading