In "The Dark Tower," Stephen King explores the nature of laughter through Susannah's reflection. She compares laughter to a hurricane, suggesting that it evolves into a powerful force once it hits a critical threshold. This analogy highlights how laughter can become a shared experience that intensifies over time, often driven by the collective atmosphere rather than the original source of humor.

Furthermore, Susannah notes that laughter often stems not just from the inherent funniness of a situation, but from the shared joy and connection among individuals. As laughter grows, it becomes a self-sustaining phenomenon, indicating that our reactions can influence and amplify each other in a communal setting.