A man may preach or write books or do all kinds of other things from quite wrong motives, but a man will seldom get alone by himself and pour out his soul to God in private unless he is sincere. They may go through many convictions, desires, feelings, resolves, hopes and fears. But all these things can come to nothing. A real heartfelt prayer, flowing from a broken and penitent spirit, is worth all these things put together. The first act when we have real faith will be to speak to God.
Prayer is to faith what breath is to life.
Just as we cannot live without breathing, so we cannot believe in Christ without praying.