The same brother then asked him (Abba Philemon), “Why is it, Father, that you take greater delight in the Psalter than in any other book of Holy Scripture; and why is it that when you are quietly chanting, it looks like you are talking with someone?” To this, he replied, “God has imprinted the power of the psalms in my soul as deeply as in the prophet David, and I cannot tear myself away from delighting in all the mystical revelations that are hidden in them. For they embrace the entire Holy Scripture.”
Cleary, Thomas. The Way of a Pilgrim and The Pilgrim Continues His Way (Kindle Locations 3460-3464). Shambhala. Kindle Edition.