I think that what you described is often a trait of young adults. I don't know your age, so I'm not sure if that applies to you, but I've found that life has a way of knocking the edges off of our curiosity and single-minded drive as the years go by. It doesn't remove these things entirely, but the everyday routines like going to the grocery store or chatting with the coffee shop counter person become more important, while the question of "What's it all about, when you get down go it?" becomes less so.