Look, as it were, through a telescope that will bring it up near to you; look into hell, and hear them groan; then turn the glass upwards and look into heaven, and see the saints there, in their white robes, with their harps in their hands, and hear them sing the song of redeeming love; and ask yourself: "Is it possible that I should prevail with God to elevate the sinner there?" Do this, and if you are not a wicked person, and a stranger to God, you will soon have as much of the spirit of prayer as your body can sustain.
--Charles Finney