Human desire

A beggar came to an emperor and he said, ' if you are going to give me anything, you have to accept  one of my conditions before. The emperor first time seeing that the beggar who was betting. He asked, what do you mean? The the beggar said my condition is that, I will accept begging only when you fill my bowl completely. The king the king said angrily, what do you think I am? Do you think, I can't fill this small bowl? The beggar said, I thought it better to tell you, if you are going to give me alms, because you can get into trouble later. The king called  Waziristan the and asked him to fill the beggar's bowl with diamond rubies and emeralds. So that the beggar knows who he is talking to. But the king was surprised that the gems would disappear as soon as they fell in the bowl. Many times the bowl was filled, but it would empty again. Now the king got angry and said to his wazir, even if my whole kingdom is gone, or my entire treasure is empty, but I will not give up on this beggar, this is what the king said. All his treasures disappeared. Gradually the king became a beggar. All this took months. Till then the beggar was the the same, the king was also the same and the whole kingdom as well. Everyone was wondering what would happen now. Eventually the king fell under the beggar's feet, and said forgive me. But before you leave here, tell me one thing. What is the secret of this bowl? How did everything disappeared in this? The beggar started laughing. He said it is made up of man's wishes. Which does not fill profit. No matter how much it fills, it keeps emptying. No matter how much money human accumulates, his wishes are not fulfilled.