In the novel "Sometimes a Great Notion" by Ken Kesey, the protagonist embarks on a journey that symbolizes a deeper exploration of life and identity. His travels illustrate the complexities of human relationships and the struggles of family ties, highlighting themes of resilience and individualism. The narrative revolves around the challenges faced by the characters, who are often caught between tradition and change.

The phrase "He'd traveled in a straight line and completed a circle" reflects the idea of returning to one's origins or confronting the past. It suggests that despite pursuing direct paths, one often finds themselves back at the starting point, confronted by unresolved issues or memories. This encapsulation ties into the broader exploration of cyclical patterns in life, emphasizing the interconnectedness of experiences and the inevitability of facing one's roots.