When Jesus taught that we must eat his flesh and drink his blood many of his disciples walked with him no more. Many of his teachings and actions were strange and unsettling. In a word, uncanny. Rudolf Otto similarly described the Holy as a numinous mysterium tremendum et fascinans. Something radically other. Flannery O'Connor evoked dramatic responses to the uncanny in her fiction through narratives of shocking violence. As much as it unsettles and disturbs, the uncanny also has remarkable power to provoke new ways of thinking and conversion.