This article describes in detail the concepts, objects, gestures, and the narrative structures that the officiants of the Afro-Cuban cult known as Palo Monte mobilize in order to identify and to measure the extent, and the origin of the affliction that threatens the bewitched. It shows that this complex technology transmits to them a palera theory of the nature of danger. This fact is of great importance because it lays on the heart of the recruitment process of new initiates.