Happiness is a cup of water when dying of thirst. Happiness is a loaf of bread when starving to death. Happiness is a feel of hunger when find nothing tasty. Happiness is a look of smile when taking the last breath. Happiness is the sweet smile blooming on the child's face for a tiresome mother Happiness is the oasis(绿洲) in the desert for an exhausted traveller Happiness is the warm feeling dancing in the heart of lover Happiness is an unchanged melody that never alter(改变)