There are always residual affects on me as a therapist, having impacting sessions with my client. Using your terms, I would say being a therapist is my calling. There are parts of being a therapist that can never be taught in graduate/doctoral school. It's about being able to make a very personal connection with someone, while being able to keep enough outside perspective to help them. But setting personal limits to take the best care of myself and my clients, billing insurances, writing notes, and filing paperwork is part of what makes it my "job".