ABSTRACT
The concept of communion (koinonia), which appears with a certain prominence in the texts of the Second Vatican Council,61 is very suitable for expressing the core of the Mystery of the Church, and can certainly be a key for the renewal of Catholic ecclesiology … . However, some approaches to ecclesiology suffer from a clearly inadequate awareness of the Church as a mystery of communion, especially insofar as they have not sufficiently integrated the concept of communion with the concepts of People of God and of the Body of Christ, and have not given due importance to the relationship between the Church as communion and the Church as sacrament [1].
