As with most of London's fiction, the central motif of “To Build a Fire” concerns the struggle of man versus nature. that the protagonist of the story dies due to a lack of intuition or imagination, unable to conceive of the possibility of his own death, others assert that he dies as a result of panic and the failure of his rational faculties. The protagonist's dangerous expedition—taken against the advice of experienced prospectors—and his superciliousness in assuming he will prevail are regarded as important themes in the story. Some critics assert that London's moral is that by using reason instead of intuition, modern man has allowed his primal instincts to atrophy. The theme of rebirth is also suggested, as the man realizes his mistakes and accepts his death with dignity. The repetitive nature of London's imagery and language functions to create an atmosphere of doom and loneliness. Some commentators suggest that this milieu also signals the inevitable fate of the protagonist, as the young man eventually freezes to death.