The lyrics of the song is actually an excerpt from one poem. It is written by a famous persian poet, Rumi.
Man O To Lyrics
Khonak an dam keh neshastim Dar eyvan, man o to Beh do naqsh, o beh do surat Beh yeki jan, man o to Khosh o faregh ze Khorafat-e-parishan, man o to Man o to, bi man o to, jam’ Shavim az sar-e-zowq