Cur homo?

This monograph has set itself the goal to examine, outline, elucidate, and supplement the existing body of knowledge concerning a theme from patristic and medieval theology recalled in 1953 by Marie-Dominique Chenu, and that is the assertion that man was created as a replacement for fallen angels (Yves Congar: créature de remplacement, Louis Bouyer: ange de remplacement). The study first shows that the idea of man having being created to take the place of fallen angels was introduced by St. Augustine and developed by other church fathers. It then identifies the typical contexts in which the subject was raised by authors of the early Middle Ages, but goes on to focus on the discussion that developed during the twelfth century (Anselm of Canterbury, the school of Laon, Rupert of Deutz, Honorius of Autun), which represents the high point of the theme under investigation, culminating in the assertion that man is an "original" being, created for its own sake, for whom God created the world – a world which together with, and through, man is destined for the heavenly Jerusalem.