Who refused to leave after the curtain call? Who is so deeply involved in the drama that he cannot extricate himself, but the other party waves his sleeves and leaves calmly? A dispensable supporting role in one scene becomes an irreplaceable protagonist in another scene. Life is just a drama that keeps playing out. Destiny is a genius writer. It has already written the conclusion on everyone's tombstone. It may be sad or happy, angry or crazy. Maybe people in the play can't help it, never make mistakes, and follow the ending set by the script, step by step, until the end of the play.