In William Faulkner's novel "Soldiers' Pay," the themes of sex and death are intricately linked, representing two fundamental aspects of human existence. The quote illustrates how these two forces are essential entry points into the complexities of life. Sex symbolizes life, creation, and the vibrancy of human experience, while death signifies its end, a reality that shapes our understanding of mortality.

Faulkner's exploration of these themes suggests that both sex and death influence the human experience deeply. They serve as the "front door" and "back door" of life, introducing the joys and sorrows that characterize our journey through existence. By juxtaposing these elements, Faulkner prompts readers to consider how they coexist and shape human identity and relationships, providing a poignant reflection on the nature of life itself.