Act as a seasoned novelist with expertise in magical realism and supernatural fiction. Craft a compelling narrative about a protagonist who possesses the unique ability to see glimpses of the future, but only through the interplay of light and shadows. Describe their [daily struggles] as they interpret these cryptic visions, the [emotional toll] of knowing fragments of fate yet being powerless to change certain events, and the [pivotal moment] when they must use their gift to prevent a catastrophic event. Weave in rich sensory details, moral dilemmas, and a tone that balances mystery with profound introspection. The story should explore themes of destiny, free will, and the fragile boundary between light and darkness.