Sacred Heart
A heart wreathed in thorns, with flames rising from it, a cross above and a wound in its side. Catholics honour it as the heart of Jesus and the sign of his love for people.
Meaning
The Sacred Heart is the Catholic devotion to the heart of Jesus, and the image that goes with it. Pope Francis wrote in 2024 that Catholics venerate the image but that their worship is directed solely to the living Christ. The heart is drawn as a symbol and not as the organ: the Catholic Encyclopedia (1910) says anatomical accuracy is not looked for, and reads the wound in it as a reminder of the invisible wound of his love. The image as Catholics know it comes from the visions of Margaret Mary Alacoque, a Visitation nun at Paray-le-Monial in France, in the 1670s. It belongs to the Catholic Church, where its solemnity is part of the liturgical calendar and many homes are consecrated to the Sacred Heart.
Origin and history
Christians meditated on the open side of Christ from the earliest centuries. John’s Gospel says a soldier opened his side with a spear, “and immediately blood and water flowed out”. The Catholic Encyclopedia finds nothing to show that the wounded Heart was worshipped in the first ten centuries, and dates the first unmistakable signs of the devotion to the eleventh and twelfth, in Benedictine and Cistercian monasteries, where the wound in the Heart came to stand for the wound of love. To the nuns St Mechtilde (d. 1298) and St Gertrude (d. 1302) it was a familiar devotion. By the seventeenth century the image of the heart was everywhere, which the encyclopedia puts down to the Franciscans’ devotion to the Five Wounds and to the Jesuits’ habit of printing it on the title pages of their books and placing it on the walls of their churches. Jean Eudes made the devotion public: the first feast of the Sacred Heart was kept at the seminary of Rennes on 31 August 1670.
Margaret Mary Alacoque (1647–1690) described a series of visions of Christ at Paray-le-Monial between 1673 and 1675. In the “great apparition” of June 1675 she heard him say, “Behold the Heart that has so loved men”, and ask for a feast of reparation on the Friday after the octave of Corpus Christi. Her Jesuit spiritual adviser, Claude de la Colombière, had her write the account down, and it was published at Lyons in 1684. Rome moved slowly. It granted the feast to the Visitation nuns in 1697, refused a feast for the whole Church in 1729, and allowed it in France in 1765; in 1856 Pope Pius IX extended it to the universal Church. On 11 June 1899 Leo XIII consecrated all mankind to the Sacred Heart, an act he called “the great act” of his pontificate. Benedict XV canonized Margaret Mary on 13 May 1920.
Flames, thorns, cross and wound
The parts of the image follow Margaret Mary’s account of one vision, as OSV News quotes it: Christ’s “divine heart, enthroned, as it were, in flames, was surrounded by a crown of thorns, and the wound it had received was still open, while a cross more brilliant than the sun, surmounted all.” The wound is the one John describes, made by the soldier’s spear. The Catholic Encyclopedia reads the visible wound as a reminder of the invisible wound of love, and Pope Francis calls the heart afire “an eloquent symbol of the burning love of Jesus Christ”. Francis also asks that the heart not be shown apart from Christ himself. The image he describes shows Christ holding out his heart and looking straight at the viewer.
The devotion today
Catholics celebrate the solemnity of the Sacred Heart on the third Friday after Pentecost. OSV News describes the devotion kept at every First Friday Mass, the practice that grew from Margaret Mary’s visions of receiving Communion on the first Friday of each month; many homes are consecrated to the Sacred Heart, and Benediction includes a prayer that the heart of Jesus in the Blessed Sacrament be praised “at every moment in all the tabernacles of the world”. In October 2024 Pope Francis gave an encyclical, Dilexit Nos, to the human and divine love of the heart of Jesus. He quotes John Paul II, who called the devotion a response to Jansenist rigour, and Pius XII, who wrote that it cannot be said “to owe its origin to private revelations”. Francis grants that some pictures of the Sacred Heart “may indeed strike us as tasteless”, and says that matters little, since the images are invitations to prayer.
Worn today
Catholics wear the Sacred Heart as a tattoo. Alyssa Maldonado-Estrada, a professor of religion at Kalamazoo College, describes “sacred hearts in full color” burning on chests among the thousands of posts tagged #catholictattoo, and, in Williamsburg, Brooklyn, a man whose tattoos include a cross with a Sacred Heart at its centre. She argues that for Catholics wearing such a tattoo is itself an act of devotion, much like using a sacramental, and places it in a longer Catholic history of pilgrims tattooed in the Holy Land and at Loreto. In 2018 Pope Francis told a meeting of young Catholics, “Don’t be afraid of tattoos,” and said that “tattoos signify membership in a community”.
Often confused with the Heart of Mary
A flaming heart can also be the Immaculate Heart of Mary, which has its own devotion and feast. Its most popular form, the Catholic Encyclopedia says, is a heart pierced with a sword, after Simeon’s prophecy to Mary. The Sacred Heart carries the crown of thorns and the cross. Maldonado-Estrada describes a faded tattoo of Mary with “a tiny flaming heart in the center of her chest”, a Heart of Mary rather than of Jesus.
See also
Latin cross, Chi-Rho, Skull and crossbones, Ichthys, INRI, Orthodox cross.
Sources
- Devotion to the Sacred Heart of Jesus, J. Bainvel, 1910, The Catholic Encyclopedia (1907–1912), via New Advent, Symbolism; history of the devotion
- Devotion to the Immaculate Heart of Mary, The Catholic Encyclopedia (1907–1912), via New Advent
- John, chapter 19, The Holy Bible, Knox translation, via New Advent, John 19:34 (Knox)
- Dilexit Nos: Encyclical Letter on the Human and Divine Love of the Heart of Jesus Christ, Pope Francis, 24 October 2024, The Holy See (vatican.va), §§49, 54, 57, 80, 83
- How Jesus’ visits to St. Margaret Mary Alacoque spread love of his Sacred Heart, D.D. Emmons, OSV News, 1 June 2025, Catholic Review (Archdiocese of Baltimore)
- St. Margaret Mary Alacoque and the story behind devotion to the Sacred Heart of Jesus, Francesca Pollio Fenton, 16 October 2024, Catholic News Agency
- Tattoos are visible signs of lived faith, Alyssa Maldonado-Estrada, 28 July 2022, U.S. Catholic
- Tattoos as Sacramentals, Alyssa J. Maldonado-Estrada, American Religion (Indiana University)
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Last reviewed September 30, 2026 by Rory Hansen. How we research