For hundreds of millions of Sufi followers worldwide, music is at the heart of their tradition and a way of getting closer to God. From the Whirling Dervishes of Turkey to the qawwali music of Pakistan, Sufism has produced some of the world's most spectacular music celebrated by Muslims and non-Muslims alike. Dalrymple's film traces the shared roots of Christianity and Islam in the Middle East and discovers Sufism to be a peaceful, tolerant and pluralistic bastion against fundamentalism.