Hans Zimmer is pretty much flawless (his work and himself included). Time always brings a tear to my eye. You must hear the piano version: http://youtu.be/k_qU3sq7VUA skip to 14 seconds if you really impatient.
This. It's unbelievably moving. Even when listened to on its own, you really feel the catharsis infused into the music, assisted by the crescendo and diminuendo of the strings (which seem a little like musical representations of deep, cleansing breaths).