Final answer:
Paragraph 4 in 'Hope, Despair, and Memory' focuses on the theme of despair and the protagonist's struggle to maintain hope amidst suffering.
Step-by-step explanation:
Paragraph 4 in the book 'Hope, Despair, and Memory' explores the theme of despair. It describes the protagonist's intense anguish and desire to escape from the pain and suffering caused by war and other horrors. The passage portrays the emotional impact of defeat and the struggle to maintain hope in the face of despair.