Why Support a Missionary?

Why does somebody support a missionary, or how do they decide who to support? Well I could answer in prose- but that's no fun. So instead I'll quote my dad. You see, when I was about fourteen, I discovered that my parents were supporting other missionaries. Since we also lived off support, I thought this was weird, and  said so to Dad.  Dad told me something that day, sitting in the hot car in the Walmart parking lot, that I haven't forgotten. He said that support wasn't really about the money. He said that supporting a missionary was about saying that you believe in them, in what's God's doing through them, and want to be part of what God's doing through them.