Amb Kor, 'the Female Spirit', is the most prominent named spirit-being of Melpa religion and the focus of the great fertility cult performed intermittently across the Hagen region. Conceived as a beautiful and dangerous woman of the high forest and wild places, she enters into a special relationship with the men who host her cult, bringing them health, the multiplication of pigs, and the flow of pearlshell and other wealth used in moka exchange, while demanding sexual restraint and freedom from the pollution attributed to ordinary women. She reveals herself through signs and can possess female mediums, who fall into trance and foretell events. Her cult was built around sacred stones and a prepared enclosure, and Andrew Strathern analysed its imagery as a sustained play of opposition, reversal and pairing between male and female. She stands as the complementary counterpart of the Male Spirit, Kor Woep.