Saint Hesychius is described by Father Emilianos as "an anatomist of the soul and divinity." In a comprehensive manner, "On Watchfulness" addresses almost all the central themes of ascetic and mystical theology, thus serving as a safe and reliable guide for the life of inner prayer. At the same time, Saint Hesychius writes in a simple and attractive style that abounds with vivid images. As Father Emilianos rightly observes, "Saint Hesychius creates a dynamic atmosphere with his words. He ignites fire and gunpowder." And Father Emilianos does exactly the same in his commentary. Keeping close contact with the actual text of Hesychius, analyzing each phrase separately, he writes with enthusiasm, clarity, and remarkable discernment. Together with Saint Hesychius, he speaks with the conviction and authority that come only from personal experience.

Father Emilianos' interpretation, combined with his corresponding work on the Ascetic Discourses of Abba Isaiah already in circulation, reveals to the modern readership how the living dialogue with the patristic texts of the past generates a living and contemporary theological discourse, laying the foundations for a modern patristic theology, a field that Father Emilianos Simonopetritis served for decades.