I think the distinction is between "something" that you've chosen to do with your life and that you find fulfilling, and the "somethings" you just kind of end up falling back to, as a default without making a conscious decision.

So yeah, I don't think there's really anything that doesn't qualify as "something", the point is just that the "somethings" that you want to do and the "somethings" you end up doing are often not quite aligned, and you kind of know it in the back of your mind but don't end up doing anything about it. "Yeah, I've always wanted to see the world, but it's not really a good time for it right now, so I'll just finish this project, and finish paying off my <X> loan, and then maybe I'll do it."

You kind of end up living in The Waiting Place from Oh The Places You'll Go. And no-one wants that.