There was once a lioness and her young cub on the grassland. The little lion cub asked his mother, "Mom, where is happiness."
The mother said, "Happiness is on your tail."
So the young cub kept chasing his own tail, but could not reach it.
The lioness smiled and said, "Silly boy, happiness is not obtained like this. As long as you march forward with your head up, happiness will always follow you!”