It's definitely not just a job. I agree with BlackCanary on this -- it's a profession and a way of life. It's a career path T's choose. And yes, good T's almost seem to be "called" to it but I usually reserve "calling" for religious leaders as well. I think when someone is good at their profession, it's because the profession "chose them." If that means the profession called them, then sure, being a therapist is a "calling." I think it's this way with all kinds of careers - artists, doctors, business owners, therapists.. Certain skill sets are needed.

T's just have a certain kind of intuitive type of skill set, where a successful artist has a way of representing beauty in a unique way, where a business owner has "business smarts." Just different skills. The skills Ts need are "people skills" and emotional intelligence. The ability to listen carefully and mindfully. The ability to read people and detect deception, even self-deception. T's need very advanced skills with language, as well -- the ability to skillfully use metaphor is probably the most important skill a T can have. But this skill is also related to people skills.