After the Rule of Saint Augustine and the Constitutions, the best known work from the Augustinian Order during its many centuries of history is without doubt the Vitasfratrum of Jordan of Saxony. As an extended commentary on the Rule and the Constitutions, a historical recollection of the first days of the Order, and an embodiment of the monastic ideal of the Desert Fathers, the Vitasfratrum has educated and spiritually accompanied generations of Augustinians throughout the middle ages up to the modern times of the Catholic reform (Miguel Angel Orcasitas, O.S.A.).