What is "gahini"

Gahini is a village and sector in Kayonza District, Eastern Province, Rwanda. It is situated on a hill, at an altitude of 1,520 metres (4,990 ft) above sea-level, close to the eastern edge of Lake Muhazi and by road from the capital, Kigali. The village is the centre of one of the nine dioceses of the Eglise Episcopale au Rwanda (EER), the Anglican church of Rwanda, and one of the four Rwandan sites chosen by the Church Missionary Society (CMS), who built a large mission, hospital and schools in the village.