While a vocation does bring us joy and should be something that we are good at, it is not primarily concerned with either of these things. As the word indicates, a vocation—from the Latin vocare, “to call”—is something that comes from outside and for the sake of something other than ourselves. Against the values of the world that tell us to never do anything we do not like and to think of our own happiness first, someone with a vocation is concerned most with the needs of the caller rather than their own, willing to sacrifice their own immediate happiness and comfort for the sake of the call. For them, there is a mission much greater than themselves at stake and they are willing to do whatever it takes to fulfill it. Sometimes, this means accepting that what we want to do and what we are good at is not what the world needs.
— from the book Called: What Happens after Saying Yes to God