In "Consider Phlebas," a significant exchange occurs when Dorolow questions Horza about his beliefs, asking if he practices a religion. Horza's response reveals a profound perspective; he emphasizes that his only religion is survival, indicating a pragmatic and perhaps desperate approach to life. This notion reflects a theme of existential struggle within the narrative, where characters are often faced with dire situations requiring their utmost resilience.

This interaction highlights the contrasting values between characters in the story. While traditional religions provide a framework for meaning and purpose, Horza's unwavering focus on survival showcases the harsh realities of his world. His answer underlines a central theme of the novel—survival is paramount, suggesting that in the face of adversity, the instinct to persist becomes a guiding principle above all else.