vocationvo·ca·tion /vəʊˈkeɪʃənvoʊ-/ noun [countableC]JOB a job, especially one that involves helping people, that you do because you enjoy it or because you have a strong feeling that it is the purpose of your life to do itAs a nurse, she felt she had found her vocation.
Sam had missed his vocation - he would have made a perfect lawyer.