Medium Nguyen Duy Nam performs during a ritual ceremony at the Lanh Giang temple in Ha Nam province, Vietnam, March 26, 2017. Dressed in the bright silk garments of a woman and dancing with candles between his fingers, Nguyen Duy Nam leads a temple of worshippers in a ceremony honouring mystical goddesses of forest, water and heaven. Nam, 24, is one of a growing number of spirit mediums who perform the Hau Dong ritual of blaring noise and vibrant colours, now enjoying a resurgence after once being frowned on by the ruling Communist Party. Dating to the 16th century, Hau Dong centres on a belief in the Mother Goddesses of three realms – forest, water and heaven. It draws from elements of Taoism, Buddhism and other religions. During rituals, spirit mediums dance to loud folk music while appearing to transform themselves into different characters from legend and history. They display changing personalities as if different spirits have entered their bodies. Sometimes they say it feels real. Believers kneel behind mediums and cheerfully grab money thrown by the spirits. Spread on the floor are offerings for the goddesses and the spirits – which can be anything from money to instant noodles to life-sized paper horses. Hau Dong's status was reaffirmed last year when it was recognised as part of the Cultural Heritage of Humanity by the U.N. cultural organisation UNESCO. In 2005, the Communist Party lifted a ban on Hau Dong, which until then it had regarded as superstitious. Interest in the ritual has since grown, as economic liberalisation has brought greater wealth and social openness. Hau Dong is not predominantly about money, but offerings to the spirits and temples can run into hundreds of thousands of dollars for a single ceremony. Although the state frowns on wasting money, sponsoring a ceremony can be a status symbol. (Photo by Reuters/Kham)





Medium An Chinh walks through smoke during a Hau Dong performance at the Viet Theatre in Hanoi, Vietnam, March 9, 2017. (Photo by Reuters/Kham)





Medium Nguyen Bich Thuy performs during a Hau Dong ceremony at Kiep Bac temple in Hai Duong province in Vietnam, February 11, 2017. (Photo by Reuters/Kham)





Medium An Chinh (C), is seen during a Hau Dong performance at the Viet Theatre in Hanoi, Vietnam, March 9, 2017. (Photo by Reuters/Kham)





A man carries a paper horse which will be offered to saints before a ritual Hau Dong ceremony at Lanh Giang temple, in Ha Nam province, Vietnam, March 26, 2017. (Photo by Reuters/Kham)





Medium An Chinh is seen during a Hau Dong performance at the Viet Theatre in Hanoi, Vietnam, March 9, 2017. (Photo by Reuters/Kham)





Paper figures, which will be offered as gifts to saints, are seen outside Lanh Giang temple during a Hau Dong ceremony in Ha Nam province, Vietnam, March 26, 2017. (Photo by Reuters/Kham)





Money and food are prepared as an offering during a ritual at a Hau Dong ceremony at Lanh Giang temple in Ha Nam province, Vietnam, March 26, 2017. (Photo by Reuters/Kham)





Details of medium Luong Nguyen's dress are seen as she performs during a ritual at a Hau Dong ceremony at Den Ngoc temple in Hanoi, Vietnam, February 12, 2017. (Photo by Reuters/Kham)





Pham Thi Thanh reacts during a ritual at a Hau Dong ceremony at Phu Day temple in Nam Dinh province, outside Hanoi, Vietnam, May 7, 2017. (Photo by Reuters/Kham)





Pham Thi Thanh drinks a glass of water used as a treatment during a medium ritual at a Hau Dong ceremony at Phu Day temple in Nam Dinh province, Vietnam, May 7, 2017. (Photo by Reuters/Kham)





Relatives assist Nguyen Thi Xuyen (C), during a ritual Hau Dong ceremony at Phu Day temple in Nam Dinh province, Vietnam, May 7, 2017. (Photo by Reuters/Kham)





Vietnamese mediums get ready for a performance at a theatre in Hanoi, Vietnam, May 7, 2017. (Photo by Reuters/Kham)





Medium Pham Ha Thanh prepares for her performance at a Hau Dong ceremony at Chau De Tu temple in Thanh Hoa province in Vietnam, May 15, 2017. (Photo by Reuters/Kham)





Vietnamese medium Nguyen Duy Nam, prepares his costumes at his house in Hanoi, Vietnam, May 4, 2017. (Photo by Reuters/Kham)





Statues of a goddess are seen during a Hau Dong ceremony at a temple in Hai Duong province, Vietnam, April 25, 2017. (Photo by Reuters/Kham)





People react to bank notes being thrown during a ritual Hau Dong ceremony at Lanh Giang temple in Ha Nam province, Vietnam, March 26, 2017. (Photo by Reuters/Kham)





Medium Le Thi Ha performs during a ritual ceremony of Hua Dong at Phu Day temple in Nam Dinh province in Vietnam, March 28, 2017. (Photo by Reuters/Kham)