"The job is what you do when you are told what to do. The job is showing up at the factory, following instructions, meeting spec, and being managed.
Someone can always do your job a little better or faster or cheaper than you can.
The job might be difficult, it might require skill, but it's a job.
Your art is what you do when no one can tell you exactly how to do it. Your art is the act of taking personal responsibility, challenging the status quo, and changing people.
I call the process of doing your art 'the work.' It's possible to have a job and do the work, too. In fact, that's how you become a linchpin.
The job is not the work."
Seth Godin (Linchpin: Are You Indispensable?)