Twilight(Dawn, Dusk), Day, Night

While considering a day, I think the twilight element is often not really emphasized. Its a beautiful transition period where all the wavelengths of light transition from white(golden) to VIBGYOR. As individuals, each of us also has this twilight period just before waking up and just before falling asleep.
Every time I see a parallel in nature to what happens within me, it makes me feel awe like I'm part of a much larger system.