He is the Head to which the whole Church is joined,
so that the Church is His Body, the completion of Him
who everywhere and in all things is complete. - Eph 1:22-23
“The Eucharist is equally sign and cause of the unity that binds together all members of the Lord’s Mystical Body. And this unity achieves in every Mass its perfect expression, because Christ’s far-flung members, together with Mary, are conjoined with Him as offerer and offered alike. Each time, then, that ‘we break this bread and drink this cup,’ the saints in heaven and the souls in purgatory join hands and link hearts with us in worshipping the Eucharistic Lord. And we have the privilege of co-worshipping with such distinguished company because we are members of that Church which is mothered by Our Lady of the Eucharist.”
Fr Richard Foley, S.J.
Mary and the Eucharist (pg. 115)