"All the World's a Stage" - William Shakespeare

Well this is basically saying the whole world is just a stage. To me I think he is just trying to say that us humans, are the actors and we all live and play our roles. While some are more important than others. We all eventually finish our roles (death). The play on the stage can funny, tragic, or serious. He is saying that life is like a play and one play mite end a new on starts on the same stage.