Situation: While standing in between two chairs, I am facing a dresser and there is a chair with a backpack on my left.
Alternative situations: I want to get some clothes from the dresser with a box on top and standing behind the trash can. I am facing a dresser with a trash can at 10 o'clock and a backpack to my left at 9 o'clock.
Question: What behind me is allowing light into this room?