This is more of a reflection than an insight . . .
Missions are about being in the correct place with the correct timing; being where God can utilize you. It is a test of finding what that mission is and fulfilling it. We may be asked to do things that don't make sense, or we feel do not lead to anything, but they become clear later on. We may not know why or how, but by following impressions we are able to fulfill our missions.
Being home for two years, I feel a lot like I'm finishing a second mission and preparing for the next two years. I've tried to be where God wants/needs me when he needs me. I feel like there have been things for me to do in certain places and at certain times during my mission and since my mission. Now I feel like I'm preparing for a third two years. Not sure what the mission will be or where it will take me . . . But I want to be where God wants me.
Hopefully this reflection was insightful.