Prayer is the light of the spirit, true knowledge of God, mediating between God and man. The spirit, raised up to heaven by prayer, clings to God with the utmost tenderness; like a child crying tearfully for its mother, it craves the milk that God provides. It seeks the satisfaction of its own desires, and receives gifts outweighing the whole world of nature. Prayer stands before God as an honored ambassador. It gives joy to the spirit, peace to the heart. I speak of prayer, not words. It is the longing for God, love too deep for words, a gift not given by man but by God’s grace.
–Saint John Chrysostom (347-407)