Eastern Christian monasticism
Eastern Christian monasticism is the life followed by monks and nuns of the Eastern Orthodox Church, Oriental Orthodoxy, the Church of the East and some Eastern Catholic Churches. == History == Christian monasticism began in the Eastern Mediterranean in Syria, Palestine and Egypt where the Desert Fathers pioneered traditions that would influence both the Hesychast traditions of Eastern Orthodoxy as well as Western monastic traditions pioneered by John Cassian and codified in the Rule of St Benedict.
Source: Wikipedia — Eastern Christian monasticism (CC BY-SA 4.0)