Life's Railway to Heaven comes to mind immediately.

And my wife's been playing the CD of "Chariots of Cherubim Chanting (or whatever the real name is)" that we heard from Nowell Sing We Clear recently.

Bob Zentz's "Chariots" isn't specifically religious, but mystical enough that, to some, it is.

Those are the first ones that I can think of just now.

Bob