The Repose of the Spirits is a translation of one of the earliest and most comprehensive treatises on Sufism in the Persian language. Written by Aḥmad Sam'ānī, an expert in Islamic law from a famous Central Asian scholarly family in about the year 1135, it is one of the handful of early Sufi texts available in English and is by far the most accessible. It also may well be the longest and the most accurately translated. Ostensibly...