There is a story in Arabia of a dervish who came before Alexander the Great asking, "Will you fill my little cup with golden coins?" Alexander thought the little cup was a small thing to fill with gold coins. He asked his treasurer to fill it, but as the treasurer began to do so, the more coins were poured into it the wider the cup appeared. It seemed that it would never be full, always a place was left open to be filled. Alexander was much surprised and thought, "If this continues all my treasure will be taken." He asked, "Oh dervish, what magic cup do you have here? What is it?"