The meaning of happiness in life. According to relevant data, floating a dream means that life is like a short dream, which means that things are impermanent and life is short, and several happiness times will sigh the beauty in the dream. It means that time flies, year after year, and is often used to sigh how fast time passes. Floating life refers to an empty and illusory life. If so, it is called the realm, the world is impermanent, and it is like dreaming.