Example:
Happiness is the wish of "wishing people a long life and a thousand miles".
Happiness is the memory of "always remembering the sunset in Xiting, intoxicated and not knowing the way home".
Happiness is the persistence of "I don't regret my clothes getting wider, and I am haggard for Iraq".
Happiness is the joy of "suddenly looking back, that person is there, and the lights are dim."