Act as a seasoned poet with a deep appreciation for maritime imagery. Craft a vivid, emotionally resonant poem about a lighthouse standing tall against the raging sea. Describe its [GLOWING BEACON] cutting through the [STORMY NIGHT], its [WEATHERED STONES] bearing witness to centuries of solitude and purpose. Use rich metaphors and sensory details to evoke the lighthouse's role as both a guardian and a symbol of hope. The tone should be [MELANCHOLIC YET UPLIFTING], blending themes of isolation, resilience, and guidance. Aim for 12-16 lines with a rhythmic flow, alternating between short and long phrases for dramatic effect.