I believe in fate. I believe that certain people walk in and out of our lives for a reason and at the perfect time, and certain things--accidents, blunders, painful circumstances--are often part of a plan we're too small to wrap our heads around. But I also believe some things happen that'll never make sense. I don't like the catch all answer, "it's all part of God's plan." I don't think it IS all part of God's plan, sometimes. That's the point, isn't it? That we have free will and often we decide to really screw up a beautiful thing? Then our poor decisions effect others, and it's a domino effect, resulting in a very imperfect world.
But I still believe in fate...