Iran firefighter heavenly voice stuns listeners

Video has gone viral on social media, featuring Iranian firefighter singing traditional poem with a heavenly voice that stuns every listener. 

The firefighter sings the traditional poem themed on mystical and religious concepts. Below is the translated version of the Persian poem:

It's raining and i'm leaving my lover

How can I take my heart back from the beloved today?

The cloud, the rain, me and my lover are standing to say farewell

I'm crying on my own with the cloud and my lover crying on their own

You’re one I have an attachment to her string of hair.

AG/AG