“The church is a communion because members are incorporated into the body of Christ; and the church becomes the one body of Christ by eating and drinking the body and blood of Christ. … [E]cclesial communion is first and foremost an essentially eucharistic communion. When the church is understood as essentially communion in and of the body of Christ, the primary focus of the ecclesial life is not church heirarchy but koinonia characterized by agape. … Communion ecclesiology is less likely to result in a situation that we find in many an independent megachurch: the dependence of the church on a single charismatic leader.”
Simon Chan in Liturgical Theology: The Church as Worshiping Community, 2006, p. 29, 30.