The "mudang"-type shamans are traditionally found in northern Korea: the provinces of Hamgyong, Pyongan, Hwanghae, and northern Gyeonggi, including the capital of Seoul. They are initiated into shamanism by "sinbyeong", an illness caused by a god entering their bodies, and is cured only through initiation. They share their body with the soul of a specific deity, referred to as "mom-ju" ("lord of the body"). During shamanic rituals, they undergo trance possession and speak with the voice of the god being invoked.