I'm certain you've been asked by others (and asked yourself), what your career is 'about" or "what you do." If you haven't, chances are you're reading this blog by accident.
Anyway, when you're asked (or ask yourself) that question, I'm sure you can spout forth a list. There's what you do, who you interact with, and what you don't do. We often are aware of the former, but I find people will often go into lists of what they don't do, what their career is not about, with surprising ease. It's almost as if we are more aware of the positives than the negatives.