Think from another angle.

(1) Toad wants to eat swan meat. To paraphrase: a soldier who doesn't want to be a marshal is not a good soldier, and a toad who doesn't want to eat swan meat is not a good toad. Men should have dreams, and only with dreams can they have goals and directions; With dreams, anything is possible.

(2) The word "serious" means "serious". But people who are too serious tend to become stubborn, rigid, dogmatic and lack spirituality, thus inevitably losing a lot of fun in life.