Finding purpose, fulfillment or joy in your work is nice, but as you grow as a human, or as the field you're in changes, or as the work dries up... well, you're left thoroughly adrift.

And at the end of the day, a job is a job. I do it because it allows me to live a lifestyle close to what I want, while not being soul crushingly boring most of the time.

I came to terms with the fact that I'm not going to change the world. The best I can do is not fuck it up anymore than when I got here. That's about as good as most of us can expect, since most of us are average in many aspects. Without stunning amounts of genius or resources, I think that hoping just to fade into obscurity is the best you can do, really.