 If you're too serious about everything, you will only know thoughts and emotion, you will not know life. In fact, the basis of your seriousness is just the way you're processing your thought and emotion. When you do not know how to conduct your thought process and your emotional structure, you tend to become serious. Your seriousness is a consequence of you misunderstanding your thought and emotion as a reality, not seeing this as a psychological process. But life can be perceived at its best only when you're at ease, not when you're serious. So seriousness is not because you're doing something very significant. Seriousness is simply because you're misunderstanding your own thought as a reality. It's not existentially real, it's a psychological space.