There's an east facing room, in a west facing house. Its curtains donβt open till the middle of the day. By then the sun has gone, taken its rays high above where they canβt reach the east facing room and only get further and further away with each hour of the day.
But at sunset, when the west faces of buildings soak up their long awaited sunlight, the sinking sun is reflected off a neighboring window, shining a brilliant orange spotlight into the east facing room in the west facing house.
The sunset was being reflected into my room when I thought of this.