I choose to believe that everything means something and there's a reason for everything that happens.
Because of this, the cornerstone of my entire belief structure is that nothing occurs by chance and everything turns out exactly how it was meant to be in the end. This is not always an easy things to put your faith in, however. When misfortune strikes... when something goes terribly wrong... when people are suffering... it's difficult to take it on faith that this is the way it's supposed to be. That everything will work itself out in the end. And yet, there's some comfort to be found when you believe that even tragedy will ultimately lead us to where we need to be.
Some people feel this is fate or destiny. Others attribute it to God's will. Still others feel it is a lesson designed to teach you something for your next life. And some just think The Universe has a way of sorting things out. Regardless, it's certainly a kinder way of dealing with adversity than believing tragedy happens for no reason at all. Because if all the world's suffering is for nothing, that would make life almost unbearable, wouldn't it?
Sure there are some lazy, self-involved assholes who use this as an excuse to stand idly by, ignore people in need, and let the world go to hell, but this does not deter me. Even politicians are here for a reason.
Sometimes I think that reason is so that I have somebody to despise, but that's okay too.