In undergrad I was a Philosophy/Religion major so I've thought about the following quite a bit. The meaning of life to me is to simply be happy. I don't spend my time worrying about things that didn't go the way I wanted. I understand you only get one shot, and I'm getting after it with no regrets!
So, I do a lot of random activities. I camp, I play in an adult kickball league (it's insane fun), I home brew, and do generally anything outdoors. I like to stay in shape while having fun.