Like many good songs, this one is by Si Kahn. It may have been recorded by others, but it can be found on Si's 1984 record, "Unfinished Portraits." The title is "Easy and Slow," not to be confused with the bawdy song of the same title.My favorite verse is:
"Part of my spirit goes traveling with you
To see that you're never alone
Part of your spirit stays right here with me
And watches me till you come home...."
It's a very good song, which I've loved for many a year.
Dan Schatz