Quote by Terry Pratchett
...the proliferation of luminous fungi or iridescent crystals in deep caves where the torchlessly improvident hero needs to see is one of the most obvious intrusions of narrative causality into the physical universe.
Summary
This quote highlights the notion of narrative causality conflicting with the laws of the physical universe. It uses the example of luminous fungi or iridescent crystals found in deep caves, where a hero, devoid of a light source, requires visibility. The presence of these illuminating elements in such an environment goes against logical expectations and can be seen as a deliberate narrative intervention to serve the protagonist's needs. It emphasizes how storytelling sometimes bends the rules of reality for the sake of advancing the plot or aiding the hero, showcasing the tension between narrative constructs and the natural order of the world.