I had an epiphany yesterday. Maybe more than just the title of my master's thesis, perhaps this is actually my calling: my vocation.
Perhaps I haven't found the right fit because I was slightly off-target. Maybe I am not the peace worker myself, but the encourager of peace workers. Not the one who stays with and focuses on one group or location, but, (I'd like to think) like Paul, the one who stays connected with and encourages peace workers in many contexts.
Maybe graduate school actually did help me find my calling.