This is the sky from halfway up Mt. Fuji.
I would have to say that the sky, both night and day, was the greatest thing about the hike. The peak and its eerie fog that shrouded everything like a thought starved horror movie and thinned to reveal a giant volcanic crater, and the way the light showed that every dark barrier you had been pitted against was actually red volcanic sand, would have been moments of epiphany if not for the onset of hypothermia, real or imagined, and the insensitivity of my travel companions. Climbing a mountain is a truly revolutionary folly.