St George Preca had a true devotion to our Mother Mary. He used to invite people to make three bows to Our Lady, in honor of her immaculate conception, her motherhood and her ascension to heaven. Moreover, he had a special devotion to Our Mother of Good Counsel. On a wall in his house, Preca had an image of Our Mother of Good Counsel and whenever he passed by it, he would pray: Mother of Good Counsel, pray for me.
The chapel dedicated to Our Lady of the Miraculous Medal, next to the SDC General House in Blata l-Bajda is a living monument of his effort in favour of this particular devotion.
The daily prayer of the Holy Rosary was indispensable for St George Preca. In 1957, he wrote five new mysteries, the Mysteries of Light to help the SDC Members meditate on the public life of Christ. These are very similar to the Mysteries of Light that Pope John Paul II officially added to the mysteries of the Holy Rosary in October 2002 with his Apostolic letter Rosarium Virginis Mariae.
The writings of S. George Preca about Mother Mary are numerous. These include prayers and various programmes to celebrate the major Marian feast throughout the year.
O Blessed Virgin,
O Gate of Heaven,
O Mother of Mercy,
O Delight of God:
pray for us,
because we know that he who bestowed on you
the dignity of Divine Motherhood
will not deny you anything. Amen.
O Mary, you are great indeed!
We acknowledge your greatness,
because you are the Mother of our Saviour
who is true God and true man
while being one divine person,
and therefore, you are the Mother of God,
because he is a divine person,
the second person of the Holy Trinity.