Iain M. Banks' novel "Surface Detail" delves into a universe where advanced technology and morality intersect, exploring themes of existence and the afterlife. The narrative unfolds across various settings, including virtual realities and simulated hells, as characters grapple with profound philosophical questions about punishment and redemption. The rich world-building and intricate plot threads intertwine to create a compelling exploration of life, death, and the nature of consciousness.

In this context, the imagery of "long sweeping swathes of darkly torrential rain" evokes a sense of turmoil and intensity, reflecting the emotional and thematic undercurrents of the story. This vivid description symbolizes the characters’ struggles and the chaotic forces at play within the narrative, highlighting the challenges they face in a universe where the lines between reality and illusion blur, and where consequences loom large over their choices.