I love that song and it typically pops into my head when I'm out chasing Rainbows. I almost act like a little kid whenever I think there will be rainbows. I start bouncing around and looking outside, checking the weather, going outside, coming back in, it's all kind of a ridiculous spectacle.
I just really like the challenge of Rainbows. There are a number of elements that have to come together and no two are ever really the same. Also, because they're weather related the other elements can dramatically change the scene around the rainbow. I don't always get it right, and sometimes they never come, but if the conditions are right I definitely have an eye in towards the sky.
Check out this slideshow from my Rainbows Gallery on DochterDigtialMedia.com: