Every morning in my little koshlong lake apartment, variations of this pattern would appear, courtesy of the sun dancing through my curtains onto my blue wall. When I opened my eyes in the morning, there it was. It changed as the sun moved and as the curtain moved with the breeze. I can't think of a better way to wake up.
And this is the pattern that caught my eye every time I plunked myself down on the toilet. Very vertebral. Natural pattern of the wood in the panels on my bathroom wall.