就教會而言,交流的真正基礎在於「一個奧體」。這不只涉及對外的關係,還有內部關係:教會成員同樣流著耶穌的血,也就是同樣擁有祂的超性生命,活力每一個人。因此,是一個有許多肢體的身體。
As for the Church, the real foundation of sociability is the doctrine of the Mystical Body. It is not just a question of external relations: but the same blood of Jesus circulates among the living members of the Church, that is, his very life, which animates everyone: so as to be one body with many members (ACV, p. 148).