Shiny side up

Stay shiny side up, is something motorcyclists say to each other when they see someone heading off on a ride. It's kind of like saying, good luck, ride safe and may the gods be with you It's something that I try to do on the bike, staying shiny side up is a good thing.
I think I've mentioned how work has been getting me down a little recently. I've been spending a lot of time at home thinking about work and what I could have done or, what I should be doing and getting angry over poor decisions that have been made and the lack of help I've had in getting things done. Then the other night, I walked into the lounge room and my wife was watching something on TV, there was a homeless man talking about life on the streets and the first thing that popped into my head was, why am I so hung up on work? Things could be so much worse, why am I letting work get me down? I don't know where the thought came from or why it came to me, I don't think I was thinking about work at the time.
On my way to work the next day, it was cold and raining on and off, but there was this big, clear rainbow, well only half of it to start with. After a few minutes, I was basically riding towards the middle of the rainbow and I could see both sides and all the way over me. It was like I was riding into the middle of the rainbow, like it was some kind of portal or something.
Again I thought that life's pretty good, yeah I'm riding in the cold and wet, but how cool is that rainbow, it was just awesome. Rainbows have always been kind of magical and this one lifted my spirits and again made me wonder why I was so worked up over my job, it's just a job after all. I then said out loud, thank-you Mum, like I kind of believed that she was showing me this awesome rainbow to brighten my day. Of course my rational brain then kicked in and I realised that there is no way that my Mum could be the reason for the rainbow, however, there would have been a thousand or more other people who saw that rainbow and a lot would have thought similar thoughts to mine, that the rainbow was a sign from God or a loved one, or even something else. People who have it a lot worse than me and have a greater need to be cheered up by a sign or even just the rainbow itself. 
It made me realise that not that long ago, people would have struggled to understand why rainbows form and it just goes to show why people would think that they were a sign from a higher being or something magical. Everything about life on this planet is really just a massive co-incidence with a large amount of luck. We really are all made of star dust. No wonder religion is so big and the cause of so many issues, without it we really would have felt alone and confused for most of history. Not that understanding rainbows makes us any less alone in galaxy, but somehow science comforts me and many others, when religion no longer can.

Bomber
How many other planets do you know of that have life?