What transformative role does the snowball incident play in the story?

The snowball incident is pivotal in "Fifth Business" as it serves as a catalyst for Dunstan Ramsay's lifelong exploration of guilt. When Dunstan is struck in the face with a snowball thrown by another child, the event not only results in a physical wound but also marks a moment of emotional and psychological significance. This incident prompts Dunstan to carry the burden of guilt for the rest of his life, particularly as it indirectly leads to the tragic consequences that affect the lives of others, especially that of the child who throws the snowball.

As the narrative unfolds, Dunstan grapples with the implications of this event and its aftermath, ultimately shaping his identity and his relationships with the other characters in the story. His journey revolves around understanding the nature of guilt, duty, and the impact of one's actions on others, making this theme central to his character development and the overall narrative of the novel.