A simple believer believes that there is a Day of Judgment, but he knows hardly anything about it. It is for the Sufi to understand that there is a record in the memory of every action, thought, and work--nature's manuscript open before our own conscience; and if a murderer escapes the police, he cannot escape from his conscience within. One might think, "It is his own conscience, what does it matter if it is displeased for a while?" But there is the universal Conscience behind it, perfectly just and all-powerful, which, if he escaped from the land and sought refuge in the water, could hang him even by means of the waves of the sea, as a penalty for his crime.