On June 13, 1929, Sister Lucia of Fatima, Portugal, received at her convent in Tuy, Spain, a secret revelation of the Blessed Trinity:
«Suddenly a supernatural light illumined the whole chapel and on the altar appeared a cross of light which reached to the ceiling.
In a brighter part could be seen, on the upper part of the Cross, the face of a man and His body to the waist;
On His breast was an equally luminous dove,
and nailed to the cross, the body of another man.
A little below the waist, suspended in mid-air, was to be seen a Chalice and a large Host on to which fell some drops of Blood from the face of the Crucified and from a wound in His breast. These drops ran down over the Host and fell into the Chalice.
Under the right arm of the Cross was Our Lady with Her Immaculate Heart in Her hand… (It was Our Lady of Fatima with Her Immaculate Heart… in her left hand… without a sword or roses, but with a crown of thorns and flames…)
Under the left arm (of the Cross), some big letters, as it were of crystal-clear water running down over the Altar, formed these words: ‘Grace and Mercy.’
I understood that it was the mystery of the Most Holy Trinity that was shown to me, and I received lights about this mystery which I am not permitted to reveal.”
First, the revelation is Trinitarian with The Father, Son, and Holy Ghost clearly represented, and Sister Lucia has received secret revelations of the Trinity. She has presented to us the entire picture related to the mystery of the Cross. The Father, the First Principle of the Trinity, is seen at the top of the Cross, above Christ, and The Holy Ghost is shown on the breast of the Father. The order Father, Holy Ghost and Son denotes the redemptive action of the Trinity in time. “Belief in, and knowledge of, the Triune God is contingent upon belief in, and knowledge of, the Son of God.” The doctrine of the Blessed Trinity was fully revealed in the life and death in the flesh, of one of its Persons, Christ.
Our Lord’s human soul received graces from the Father which overflow to us. The sacred Humanity of Our Lord is the conduit through which all graces pass to men. Without the union of the two natures in Jesus, making Him “true God and true man,” this mediation would be impossible.
In the Tuy revelation, Jesus is shown after His act of redemption, since His precious side is wounded. On crucifixes, when Our Lord is portrayed alive, His eyes are open and his side is not wounded. When He is portrayed dead, the side is wounded and the eyes closed. The Second Person of the Trinity is being portrayed united to that lifeless Body and to that Blood. The Body, Blood, and human Soul are all united to the Person of the Son, who conquered death and joined forever those elements of a living body.
The words “Grace and Mercy” in big letter under the left arm of the Crucified signify the divine commodity that our Mediator dispenses to us. Baptism is the first sacrament, the incorporation into the “Mystical body of Christ”, and the Eucharist is the greatest sacrament by which we communicate directly with Christ. Baptism allows our birth into the Mystical Body, into the very life of the eternal Trinity, entitling us to feed on Christ’s Body. This is supreme “Grace and Mercy!”
Sister Lucy had this vision while adoring Our Lord truly present on the Altar during an Eucharistic Hour. She saw “a Chalice and a large Host onto which fell some drops of Blood from the face of the Crucified and from a wound in His breast. These drops ran down over the Host and fell into the Chalice.” The elevated Host and the Chalice also represent the Church. According to St. Augustine the Church is “The Whole Christ.” It is Jesus, the Head, united to us, the members, in a mysterious union.
The vision appeared “on the altar” of the convent. The revelation is a vivid reminder that the faithful make contact with the colossal realities of our salvation every time we participate in a Mass in union with the Holy Trinity and the Blessed Mother, who began her co-redemptive career consenting to her role in the Incarnation.
Our Lady was under the right arm of the Cross with Her Immaculate Heart in Her hand standing exactly where she was during the Crucifixion of her Son. The Blessed Virgin is shown here in the vision of Tuy as the Co-Redemptrix and Universal Mediatrix of grace. Our Lady’s agony at the foot of the Cross was the climax of her whole life of sufferings united to Jesus’ sufferings. The crown of thorns which encircles the Immaculate Heart is the sign of her suffering and the flames are the intensity of her charity.
There is a deeper connection between the Virgin and the Church, the society of all supernaturally regenerated by Christ’s redemption. Mary ranks first, the only perfectly redeemed, only perfectly saved. Mary was uniquely redeemed to be sinless, and “full of grace” from the beginning of her life to its end, all by the “grace and mercy” of the Trinity.