I know it’s after midnight, and therefore technically Sunday, but here, late on a Saturday night, I want to play you a lullaby. Our choir sang a choral arrangement of this on Martin Luther King Sunday. And, copied from the web page that has this video, here is an interpretation, as well as the lyrics.
Sleep Well.
Uploaded on Jan 16, 2012
Tribute to Martin Luther King, Jr. (January 15, 1929 — April 4, 1968)
According to Bono: “MLK” has been written “as sort of a lullaby for an idea that was dying in our country: the idea of non-violence… All inspired by a black reverend from Atlanta who refused to hate because he thought love would do a better job.”
(from “In the Name of Love: King’s Legacy Lives On” by Michelle Watson, The Daily Journal, January 24, 2004)
U2 Lyrics – M.L.K. (The Unforgettable Fire)
Sleep
Sleep tonight
And may your dreams
Be realized
If the thunder cloud
Passes rain
So let it rain
Rain down on him
So let it be
So let it be
Sleep
Sleep tonight
And may your dreams
Be realized
If the thundercloud
Passes rain (This lyric, to me, is about letting the bad times pass on by.)
So let it rain
Let it rain
Rain on him
Zebra's Child 
Lovely tribute
Thanks Barb 🙂