Analyzing the magical object buti among the Kukuya of the Congo, Pierre Bonnafe shows how it is inseparable from the practical syntheses that produce, record, and consume it: the partial and nonspecific connection that combines fragments from the body of the subject with those of an animal; the inclusive disjunction that inscribes the object in the body of the subject, and transforms the latter into a man animal; the residual conjunction that causes the residue to submit to a long voyage before burying or immersing it.