Also the name of an Irish blessing made into a song. My high school choir sang it at the end of every spring concert.

May the road rise to meet you
May the wind be always at your back
May the sun shine warm upon your face
May the rain fall soft upon your feilds
And until we meet again
Until we meet again
May God hold you in the palm of His hand.

It has a hauntingly beautiful melody and was a great way to end the year!