As far as a career goes, I think when your career allows you to uniquely express and use your genius and provides a medium for you to accomplish your purpose then it resonates with you. That's why you love doing it. It puts you at ease when you do it, and you know it's work, but for some reason it doesn't feel like the word "work" as society uses it. This is what I'm learning from Dick Richards' book
Is Your Genius At Work?.