Our world is artificially lit at night.The world is uncluttered by the nuance of color and depth. Different colors will show different depth changes in different regions, temperatures and humidity. And I find that red is particularly dazzling at night.I simulated the "red night" in nature and and that red descends, bringing with it stillness and quiet unexpectedly.I used photography and the red one to explore bustle and decline,The space formed by humans and nature,organism and artefact,and from the moutains to land.