Well, in that it is the Body of Christ, the entire Church is there, in a way, although we are not consuming the Church, the Most Holy Theotokos, or eachother, but communing with them in Christ. We all partake of Christ. The priest, in the proskomide cuts the bread into several pieces with commemorations of Our Lady, the angels, the saints, and the living and departed Orthodoxy. As I understand, all of these are consecrated into the body of Christ. Maybe a priest could clarify this, please.