If you yourself are a sun, and you stand next to another sun, no area around you will be dark. The two suns are very bright and standing right next to each other, so all the area will be lit up and nothing will be dark.
Since the sun has blinded you, your vision is now very dark. You can’t see anything, but you are hungry so you reach around for some food and eat it. Yuck! It’s anchovies (あん). You don’t even like anchovies, how did they get in your house?