Ecclesia de Eucharistia §54

⁵⁴ Mysterium fidei! If the Eucharist is a mystery of faith which so greatly transcends our understanding as to call for sheer abandonment to the word of God, then there can be no one like Mary to act as our support and guide in acquiring this disposition. In repeating what Christ did at the Last Supper in obedience to his command: “Do this in memory of me!”, we also accept Mary's invitation to obey him without hesitation: “Do whatever he tells you” ( Jn 2:5). With the same maternal concern which she showed at the wedding feast of Cana, Mary seems to say to us: “Do not waver; trust in the words of my Son. If he was able to change water into wine, he can also turn bread and wine into his body and blood, and through this mystery bestow on believers the living memorial of his passover, thus becoming the 'bread of life'”.