Benin is a spiritual home of voodoo and the only country where it’s recognised as a state religion. In southern Benin, children are sent to traditional voodoo monasteries, where they are forbidden to speak their native language and use their names. Children are given to monasteries to appease the spirits if a parent or a child is sick. Taking them back requires an expensive ritual. But parents often have neither money nor willingness to return their children, leaving them in monasteries for months and years.