Throughout The Sun Also Rises, protagonists in the novel choose to escape when the tension in the world seems too great and the nature of man too small to challenge the order of things or when man is still too rebellious or too horrified to accept things as they are (Bloom). Hemingway's novel emphasizes a definition in the world's limitations, cruelties, and built in evil. Despite the gloom of much of the book, a good part of it is pervaded by high spirits stemming from the peace of nature and self-possession of relationships (Fuchs 450). There is optimism in the novel, that the lost generation may not be lost forever, hence the title The Sun Also Rises.
Returning back to the United States, Hemingway never really returned to America as an American.