I love riding in the dark, the way it opens up in front of you and closes up behind you, and all the rest of the time you’re as good as invisible. I suspect that one of the things I like deep down about bike commuting is that for half an hour every morning and evening I move through a busy and crowded world without altogether being a part of it. Biking to work is the next best thing, I think, to being able to fly 15 feet off the ground.
Anyhow, dark enhances this illusion. Remarkably, my fore and aft lights don’t diminish it much, perhaps because even with them I’m only a bright dot at a hundred yards or more.