Meredith Grey (narration): Life doesn't owe us a thing. It just is. Like a river, it goes where it goes. You can try to fight against the current. Or you can learn to ride it. As surgeons, we dedicate ourselves to an endless fight against the current. All day, every day, we fight against the current. Sometimes we lose, sometimes we win. Sometimes, the current carries us exactly where we need to go. And sometimes, it slams us right into the rocks.