"How Can I kep from Singing" always turns up in these sort of lists as a great non-God spiritual type of song. It should be remembered that was not the intention of its original creator, it was written as a very Christian hymn. Someone very cleverly filletd out the bones of Godliness, and left it very atheist, back in the 60's I think. It was done very well, most of these sort of rewrites are like modern language versions of the bible...rubbish, for the most part. But this has actually improved the song and made it very succesfully universal. That's what I think, anyway.