The Messenger of God, may God’s prayers and peace be upon him, said, “Beware of greed for food, for greed for food marks the heart with hardness, slows the limbs down from obedience, and deafens people from hearing admonition. Beware of curiosity, for it scatters desires and generates heedlessness. Beware of feeling greed, for it absorbs the heart’s keenness.” It seals the hearts with the stamp of love for the world, as it is the key to every bad thing and the reason for the frustration of every good thing.