When Lucia was a Carmelite writing CALLS, she meditated much about this and shared her extraordinary Marian insights.
“We all know that a mother’s heart represents love in the bosom of a family,” Lucia explains. “All children trust in the heart of their mother, and we all know that we have in her place a special affection. The same applies to the Virgin Mary. Thus this message says: My Immaculate Heart will be your refuge and the way that will lead you to God. Hence, the Heart of Mary is a refuge and the way to God for all his children.”
Why does Jesus wants his Mother’s Immaculate Heart venerated alongside his Sacred Heart?
“It was in this Heart that the Father placed His Son, as if in the first Tabernacle,” Lucia explains, and “it was the Blood of Her Immaculate Heart which communicated to the Son of God His Life and His human nature, from which we all, in turn receive ‘grace upon grace’ (John 1:16).”
So how does this work out? “I see that from the very beginning Jesus Christ united to his redemptive work the Immaculate Heart of Her whom He chose to be His Mother,” Lucia says. (St. John Paul II has written similarly.) “The work of our redemption began at the moment when the Word descended from Heaven in order to assume a human body in the womb of Mary. From that moment, and for the next nine months, the Blood of Christ was the Blood of Mary, taken from Her Immaculate Heart; the Heart of Christ was beating in unison with the Heart of Mary.”
Lucia notes a whole new generation is born from this Mother — “Christ in Himself and in His Mystical Body. And Mary is the Mother of this progeny chosen to crush the head of the infernal serpent.” Recall we’re in the Mystical Body of Christ.
The devotion to her Immaculate Heart means no less than victory over the devil and evil (Genesis 3:16). Sister Lucia puts it this way: “The new generation that God foretold would be born of this woman, will triumph in the battle against the progeny of Satan, to the point of crushing its head. Mary is the Mother of this new generation, as if she were a new tree of life, planted by God in the garden of the world so that all her children can partake of her fruit.”
Recall the July 13, 1917 vision where Our Lady showed the children hell and sinners? And what she said next was another reason for this essential devotion? She said:
To save them, God wishes to establish in the world devotion to the Immaculate Heart. If what I say to you is done, many souls will be saved and there will be peace.