What is your theme song?

Every day, I have a theme song. It varies on what the day brings, and what happens. I can have different theme songs during the day depending on how it all goes.
I have mainly 2 that come into my days. The 1st one, the best one, usually comes into play when the day is sunny - regardless of how things are going. That song is by U2 'its a beautiful day'.. thats all I hear. I love that song, and its so relevant. It puts you in a 'pumpy' mood and gives a certain amount of energy, making the day go better and encouraging the goodness coming from the sun.
The 2nd theme song that I have playing, is 'theres got to be more.. (to life)' .. by some chick. I really like that song also, but when it has meaning and is relevant to my day to day living, then I dont particularly love it.
Do you ever wonder what else you could have done in your life? Do you wonder if the 'butterfly effect' has had much effect on YOUR life? There are a million ways that life can go, with very simple occasions. Every day 'could' have gone different. What if you'd turned left, instead of right? What if you had been delayed for 2 small minutes? What if you had said no to a particular promotion or job offer? What if you had not had sex on that particular day and not ended up pregnant? What if I had been unable to have children? Where would I be? What if I had developed the keen interest of seeing the world, before I had got pregnant.. who would I be with? Would I even be married? What if I hadnt have been in that particular chatroom, would I still have met my partner in some other way?
People tend not to think of these questions.. nor the answers that go along after them. Their reasoning is 'there is a purpose for everything' and 'there is no use thinking about things that will never come about' .. yes, I agree. I dont think there is a purpose for everything. I used to, but I have too many unanswerable questions. I do however, think people are brought together in particular ways to build relationships - be it friendships, or more.
They say 'life isnt a dress rehearsal'.. but there are far too many things that I want to do in this life!