❝It is human, perhaps, to appreciate little that which we have and to long for that which we have not, but it is a great pity that in the world of light the gift of sight is used only as a mere convenience rather than a means of adding fullness to life.❞ -Hellen Keller
It's dark as I leave my house. I'm going for a run in the morning before the sun comes up. I live on a running trail crossing a busy road and train tracks. The trail routes me to an overpass over the train tracks and then to an underpass underneath the busy road. This seems like a lot of extra running, so many of us run directly across the train tracks.
It's challenging to run on the rocks that are around the train tracks, so I'm up on the boards. Even on the boards, it's still difficult to run because the sun's not up yet, and although I have my night vision, it's not clear what I'm exactly stepping on.