elect another spiritual leader by vote. In some orders it is recommended to take a Khalif from the same order as the murshid. In some groups it is customary for the khalifa to be the son of the sheikh, although in other groups the khalifa and the sheikh are not normally relatives. In yet other orders a successor may be identified through the spiritual dreams of its members.

Tariqas have silsilas (; "chain, lineage of sheikhs"). All orders