A spirit can be fixed into an object — a pot, a stone, a wrapped packet, a jar — which is then kept in the badji, the inner altar room, and becomes a permanent feature of the household with its own feeding schedule. The pòt tèt, containing material from an initiate's head, and the govi holding a retrieved ancestor work on a related principle. The consequential feature is that the obligation attaches to the object and cannot simply be abandoned: a family that inherits one inherits the schedule, and disposing of a pwen requires its own ceremony conducted by someone competent, not a decision to throw it away. This is one of the mechanisms by which Vodou obligations persist through conversion, migration and generational change, and it is a recurring problem for families in the diaspora who find themselves responsible for objects they did not ask for.