Have you had that day where being on your bike was just wrong? Nothing around you is that different, but it is all wrong nonetheless. I had that today. Even going downhill required effort. My hamstrings were screaming less than a quarter of the way to picking up Declan. He whined and complained all the way home about every little thing he could think of. He wiggled so much in the seat I couldn't keep the bike straight (which wore me out even faster than usual). By the end of the ride I felt like crying every time I had to stop and put my foot down- even keeping the bike up at a stop had become too much.
It happens. Riding a bike does not magically cure all the ills of the world. You can still have a crappy day on a bike. It just isn't quite as crappy as it could be. You still get to see things and smile at people and see the sky.
Colours still stand out, and you can stop to admire them. You can see how other people do what you do.
Even with that, some days just blow. Nothing you can do but take a picture of it.