This song comes to us from presenter Ana Hernandez, with text from Sufi poet Rumi.
Here is the Sheet music, and a video file is attached below.
This "peace" was written by Benjamin and Tamika Jancewitz who teach it in the video at an MMC event in Baltimore 2015.
This song is originally from Ghana, and the version we've sung at many MMC events is from a setting by Marty Haugen and Marc Anderson. You can find the sheet music and a recording of the song at GIA Music.
This song was composed by Pat Humphries and Sandy O. You can hear a clip, as well as buy a recording or the sheet music on their website Emma's Revolution. Here's a clip of AnnaMarie Hoos teaching it at an MMC event at Holy Cross Monastery in September of 2015: