A mother who had lost her only son went to the man of religion in her village and said: "Is there anything you can give me to reduce the pain that I feel?" "Yes," he said. "There is a wonderful thing you can do. I want you to go and get me a mustard seed from a home that has no problems. Such a mustard seed can ward off all problems. When you find it, bring it to me and I will use it to relieve your pain." So the mother started out and came to a big mansion. Nothing could possibly be wrong here! She knocked on the door, told what she was looking for, and they answered, "You've come to the wrong house." And then they told her all their problems. As she was listening to their problems, she thought, "I know something about problems... Maybe I can help these people with theirs." So she listened to them; and this helped people. She kept on searching for her magic mustard seed. But no matter where she went, she could not find that seed. Everyone everywhere had some kind of troubles.
But she really did find the magic mustard seed, because in trying to help others solve their problems, she forgot all about her own.