According to Jewish folklore, a dybbuk is a disembodied human spirit in search of a living human to possess. In Singer's stories, dybbuks, like ghosts, can be mischievous, evil, or benevolent. The figure of the dybbuk appears in many of these stories. Often, the living characters ascribe events in their life to an unseen and unknown dybbuk. In actual Judaism, special rabbis were once called to perform exorcisms on dybbuks which are similar to the exorcisms to remove demonic possessions practiced by the Catholic Church.