Sufism is a set of mystical beliefs and practices which originated from early Islamic asceticism in 8th-9th centuries CE. It is a spiritual path structured around the concept of Oneness. Sufism encourages individual evolution, opening the heart to reflect the Divine Truth. Followers seek direct encounters with God through spinning in time with music, confronting pain and sorrow and forcing themselves out of habitual modes. Sufis have contributed greatly to Islamic literature and are known in the West through the writings of the great poet Rumi.