Baba Bulleh Shah practiced the Sufi tradition of Punjabi poetry. At a time of strife between people of different faiths (Muslims and Sikhs) Bulla was a beacon of hope in Kasoor, Punjab. He believed in peace and resolution of conflict without violence and was equally respected by both faiths.
The recital that you see in the video below is part of the "Spirit of the Sufis" event in Montreal from April 2007.
Piya Ghar Aya from Tasawwuf on Vimeo.