ON THE JESUS PRAYER by Saint Theophan the Recluse

"Reserve in your rule of prayer a place for the Jesus prayer. Repeat this prayer several times at the beginning of your recital of prayers, and several times at the end. If you have the zeal, do the same after every prayer which enters into your recital, imitating Saint Joanniky the Great, who, after every verse of the psalms, included in his rule of prayer, repeated his short prayer: 'The Father is my hope, the Son is my refuge, the Holy Spirit is my protection.'"