Sufism is the mystical current within Islam, a path where the outer rules of duty are turned inward and become a longing for direct nearness to God. The word likely comes from *suf*, wool, after the simple woolen garments worn by early ascetics. But the core is not the clothing, it is love: the Sufi seeks not only to obey but to love, and ultimately to dissolve into the beloved.

Central to Sufism is fana, the extinguishing or annihilation of the self, followed by baqa, abiding or living on in God. The seeker is often described as a drop longing to return to the ocean, or a moth drawn toward the flame until it is consumed. This is not annihilation in the sense of emptiness, but a dissolving of whatever separated the self from the source.

Poets such as Rumi, Hafez, and Ibn Arabi have made this path into some of the most widely read poetry in world literature. Rumi's images of the lover and the beloved, of wine and intoxication, of the reed flute weeping after being cut from its reed bed, are metaphors for the soul's separation from its origin and its longing for home. The whirling dance of the dervishes, *sama*, is this longing made into movement: the body spins while the heart turns toward the center.

Sufi orders (tariqa) have for centuries carried the tradition forward through a teacher, a master who guides the disciple through stages of purification: repentance, patience, gratitude, love, and finally annihilation in the divine. The path is both disciplined and overflowing, a meeting of strict training and total devotion.

Throughout history, Sufism has lived in tension with more literal interpretations of Islam, since talk of union with God and the extinguishing of the self can seem to border on blasphemy if taken too literally or too freely. Yet it has survived as one of Islam's most influential branches, loved as much for its poetry as for its theology.