How does the apparition at the banquet affect Alonzo?

The apparition at the banquet deeply unsettles Alonzo, confronting him with the consequences of his actions and the guilt he harbors. This haunting experience serves as a catalyst for his introspection, forcing him to reevaluate his choices and their impact on those around him. Ultimately, it highlights the theme of accountability and the psychological burden of unresolved guilt in Alonzo's character arc.