For nearly two millennia, many Christians have chosen to express their piety through ascetic living. Though the roots of monasticism existed long before, the sixth-century monk Benedict of Nursia is considered to be the founding father of the medieval monastic movements. Benedict’s charter, known as the Benedictine Rule, outlined key principles of holiness and self-denial for communities of monks and nuns who were committed to the values of poverty, chastity, and obedience to God. However, later generations did not always show the same degree of commitment and devotion as their predecessors. In response, certain influential leaders responded to corruption and decline by calling for a return to Benedict’s rigid standards. While returning to the rigor of the past, these leaders also envisioned new ways for monks to carry out their mission within a changing world.