The Ideal of Reparation by Fr. Raoul Plus (1882–1958)
https://archive.org/details/theidealofrepara00plusuoft/page/n3/mode/2upOur dear Lord could have performed this work of Reparation alone, but He did not so will it. He has chosen as associates each one of us, every Christian. We must, grasp this truth well, for it is the foundation of the doctrine of Reparation.
Bossuet writes:
In order to become the Saviour of men, Jesus Christ willed to be a Victim. But since He has a Mystical Body, it follows that if the Head is immolated, all the members likewise must become living victims.
(Serm. pour la Purif. de la Ste. Vierge)