Saint Diadochos of Photiki (c. AD 400 – c. 486). “On Spiritual Knowledge and Discrimination. One Hundred Texts”, No. 31. From Philokalia, Vol. 1. One of the earliest written references to the “Jesus Prayer”; “the remembrance of the glorious and holy name of the Lord Jesus…“
“When our intellect begins to perceive the grace of the Holy Spirit, then Satan, too, importunes the soul with a sense of deceptive sweetness in the quiet times of the night, when we fall into a light kind of sleep. If the intellect at that time cleaves fervently to the remembrance of the glorious and holy name of the Lord Jesus and uses it as a weapon against Satan’s deception, he gives up this trick and for the future will attack the soul directly and personally. As a result the intellect clearly discerns the deception of the evil one and advances even further in the art of discrimination.”
First Thoughts 