Act as a seasoned novelist with expertise in magical realism and fantasy. Craft a compelling opening chapter for a novel about a protagonist who possesses the unique ability to see the future, but only when gazing into [TYPE OF STONE], such as obsidian or marble. Describe their [DAILY RITUAL] of interpreting the visions, which are often cryptic and fragmented. The chapter should introduce a [CRITICAL EVENT] they foresee—one that will alter their life forever—and their internal struggle to understand its meaning. Use vivid imagery to convey the weight of their gift and the isolation it brings, setting the tone for a story that blends mystery, destiny, and the supernatural.