The "simbang"-type shamans are found only in Jeju Island, and combine features of the "mudang" and "dan'gol" types. Like the "mudang", the "simbang" of Jeju are associated with a specific set of gods. But these gods do not inhabit the shaman's body but are externalized in the form of the "mengdu", a set of sacred ritual implements in which the gods and spirits of dead shamans are embodied. The "simbang" basic task is to understand the divine message conveyed by their "mengdu" and to use the "mengdu" to worship the gods.