The Mission is one of my all-time favorite movies. Much of that love is due to the near holy melodies brought to the screen by Ennio Morricone. His Main Theme is extraordinarily beautiful and the opening solo by the oboist could be not be more perfect. Should I ever find myself captive on that notorious desert island I hope to have this piece for company. I'd be okay then.
Do yourself a favor - clear your mind for ten minutes and have a listen. Here's the Munich Radio Orchestra conducted by the maestro himself: The Mission - Main Theme