For the desire of your heart is itself your prayer. And if the desire is constant, so is your prayer. The Apostle Paul had a purpose in saying: Pray without ceasing. Are we then ceaselessly to bend our knees, to lie prostrate, or to lift up our hands? Is this what is meant in saying: Pray without ceasing? Even if we admit that we pray in this fashion, I do not believe that we can do so all the time.
Yet there is another, interior kind of prayer without ceasing, namely, the desire of the heart. Whatever else you may be doing, if you but fix your desire on God's Sabbath rest, your prayer will be ceaseless. Therefore, if you wish to pray without ceasing, do not cease to desire.
The constancy of your desire will itself be the ceaseless voice of your prayer. And that voice of your prayer will be silent only when your love ceases...
The chilling of love means that the heart is silent; while burning love is the outcry of the heart. If your love is without ceasing, you are crying out always; if you always cry out, you are always desiring; and if you desire, you are calling to mind your eternal rest in the Lord.