Alternative point of view: you already are on a mission, whether you realize or not. Somebody maybe put something in motion by doing some very imperative actions generations ago, and it still reverberates in your personal life. There are layers from other missions by other agencies as well. A king wanted to have his people live in some contested wilderness. So your ancestors went. There was a soldier who survived some battles in faraway lands who settled somewhere. The government wanted to industrialize the country and your ancestors moved to the city.

Of course, for most people most of the time, you are where you are and you just adjust and live.