* They create tension and anticipation: The poem builds up to Casey's turn at bat, slowly raising the stakes and the audience's expectations. The 18 lines capture the excitement and pressure of the moment.
* They use vivid imagery: The language is powerful and evocative, bringing the scene to life in the reader's mind. We see the crowd, hear the cheers, and feel the weight of the moment.
* They highlight Casey's personality: These lines portray Casey as a confident, almost arrogant, figure, who is both feared and admired. This contrasts with his ultimate downfall.
* They create a dramatic climax: The 18 lines culminate in Casey's strikeout, a moment of incredible disappointment for the fans and a crushing blow to Casey's pride.
* They offer a lesson in humility: The poem teaches us that even the most confident and talented individuals can fail, and that humility is an important virtue.
In short, the 18 lines are the heart of the poem, transforming it from a simple narrative into a powerful, memorable piece of literature. They provide the excitement, the drama, the characters, and the message that make "Casey at Bat" such a beloved classic.