Sure, she may have had some, ehhh, interesting ideas about the impoverished and their place in the grand scheme of things but Mother Theresa let a few gems slip in her time. There are a few ways to interpret this one, though. You could be pretending to be calm and happy until you’re calm and happy or you could start a positive relationship with an enemy by cracking a joke. I suppose you could also be referencing the joy of a victorious general as he signs a treaty with a defeated foe but let’s just ignore that one for now, shall we? Good. Go smile at people.