Pray Simply. Do not expect to find in your heart any remarkable gift of prayer Consider yourself unworthy of it-then you will find peace. Use the empty, cold dryness of your prayer as food for your humility. Repeat constantly: “I am not worthy, Lord, I am not worthy!” But say it calmly, without agitation. This humble prayer will be acceptable to God.
–Saint Macarius of Optina (1788-1860)