Firefly light: a quiet valley stream on a summer night in the Korean countryside, hundreds of fireflies drifting over the water and among the reeds, each one a tiny soft yellow-green point of light, their glow faintly reflected in the still pools. Long exposure so some fireflies draw short glowing curves. The trees and the stream banks barely readable in deep blue darkness, a few stars above. Calm, magical, quiet. No lamps, no houses, no people. No text, no letters, no logos.