The ending to A Life left behind is actually my favorite part of it. The intro is fun and cheerful, very Yes-sounding, then the ballad itself is pretty and melodic with an infectious chorus, but at one point, all of a sudden, the melodies take a dark, morbid turn and that gives me chills.
I love it when bands have the ability to get you comfortable with a certain vibe, and then just smash you over the head with an insane sounding twist. That's what the guys did here, and they did it extraordinarily well.