This post really resonated with me, deeply. I've been having almost exactly the same thoughts that the author has had, lately.
I think a lot of us underestimate how essential creative self-expression is to our well being. I've come to the realization that I don't want to just live a regular life, working and consuming, but rather I want to contribute something creative, of my own creation, to the world. Deep inside, I think most people will find their greatest joy in building and creating new things (out of love (and not just as a means of survival)).