the saintly being become the loci of the person's baraka, and in some views he or she becomes the guardian spirit of the locality. The intercession of the wali is sought on a variety of occasions, particularly by those seeking cures or by barren women desiring children. A saint's annual holy day is the occasion of a local festival that may attract a large gathering. Better-educated Muslims in Sudan may participate in prayer at a saint's tomb but argue that prayer is directed only to God. Many others, however, see the saint not merely as an intercessor with and an agent of God, but also as a nearly autonomous source of blessing and power, thereby approaching "popular" as opposed to orthodox Islam. Movements and religious orders Islam made its deepest and longest lasting impact in Sudan through the activity of the Islamic religious brotherhoods or orders. These orders emerged in the Middle East in the twelfth century in connection with the development of Sufism, a reaction based in mysticism to the strongly legalistic orientation of mainstream Islam. These orders first came to Sudan in the sixteenth century and became significant in the eighteenth. Sufism seeks its adherents a closer personal relationship with God through special spiritual disciplines. The exercises (or dhikr) include reciting prayers and passages of the Qur'an and repeating the names, or attributes, of God while performing physical movements according to the formula established by the founder of the particular order. Singing and dancing may be introduced. The outcome of an exercise, which lasts much longer than the usual daily prayer, is often a state of ecstatic abandon. A mystical or devotional way (sing. tariqa; pl. turuq) is the basis for the formation of particular orders, each of which is also called a tariqa. The specialists in religious law and learning initially looked askance at Sufism and the Sufi orders, but the leaders of Sufi orders in Sudan have won acceptance by acknowledging the significance of the sharia and not claiming that Sufism replaces it. The principal turuq varies considerably in their practice and internal organization. Some orders are tightly organized in a hierarchical fashion; others have allowed their local branches considerable autonomy. There may be as many as a dozen Turuq in Sudan. Some are restricted to that country; others are widespread in Africa or the Middle East. Several Turuq, for all practical purposes independent, are offshoots