生き甲斐

What you love (your passion) What the world needs (your mission) What you are good at (your vocation) What you can get paid for (your profession) iki (生き) meaning "life; alive" and gai (甲斐) meaning "(an) effect; (a) result; (a) fruit; (a) worth; (a) use; (a) benefit; (no, little) "a reason for living (being alive); a meaning for [to] life; what (something that) makes life worth living; a raison d'etre".