“The unceasing interior Jesus Prayer is the uninterrupted, continual calling upon the divine name of Jesus Christ, with the lips, the mind, and the heart, while calling to mind His constant presence and beseeching His mercy, during any activity one may be occupied with, in all places, at all times, and even while sleeping. The words of this prayer are as follows: ‘Lord Jesus Christ, have mercy on me!’ If one makes a habit of this supplication, one will experience great comfort and a need to repeat this prayer unceasingly, so that eventually one will not be able to live without it and the prayer will flow of its own accord.
Cleary, Thomas. The Way of a Pilgrim and The Pilgrim Continues His Way (Kindle Locations 210-214). Shambhala. Kindle Edition.
“Now listen, I will read to you about how to learn unceasing interior prayer.” The starets opened the Philokalia, selected a passage from Saint Simeon the New Theologian, and began to read: “‘ Find a quiet place to sit alone and in silence; bow your head and shut your eyes. Breathe softly, look with your mind into your heart; recollect your mind— that is, all its thoughts— and bring them down from your mind into your heart. As you breathe, repeat: “Lord Jesus Christ, have mercy on me”— either quietly with your lips, or only in your mind. Strive to banish all thoughts; be calm and patient, and repeat this exercise frequently.’”
Cleary, Thomas. The Way of a Pilgrim and The Pilgrim Continues His Way (Kindle Locations 226-231). Shambhala. Kindle Edition.