Prayer itself is the piercing of our hearts by pious feelings towards God, one after another – feelings of humility, submission, gratitude, doxology, forgiveness, heart-felt prostration, brokenness, conformity to the will of God, etc…. When these feelings are present, our praying is prayer, and when they are absent, it is not yet prayer.
–Saint Theophan the Recluse (1815-1894