St. Margaret Mary Alacoque, V.H.M. (1647-1690), was a French Roman Catholic nun and mystic, who promoted devotion to the Sacred Heart of Jesus in its modern form.
Alacoque was born in 1647 in L'Hautecour, now part of the commune of Verosvres, then in the Duchy of Burgundy, the only daughter of Claude and Philiberte Lamyn Alacoque, who had also several sons. From early childhood, Margaret was described as showing intense love for the Blessed Sacrament, and as preferring silence and prayer to childhood play.
After her First Communion at the age of nine, she practised in secret severe corporal mortification, until rheumatic fever confined her to bed for four years. At the end of this period, having made a vow to the Blessed Virgin to consecrate herself to religious life, she was instantly restored to perfect health. In recognition of this favor, she added the name Mary to her baptismal name of Margaret. According to her later account of her life, she had visions of Jesus Christ, which she thought were a normal part of human experience and continued to practice austerity.
Alacoque lost her father at a young age, and the family's assets were held by a relative who refused to hand them over, plunging her family into poverty. During this time, her only consolation were frequent visits to pray before the Blessed Sacrament in the local church. When she was 17, however, the family regained their fortune and her mother encouraged her to go in society, in the hopes of her finding a suitable husband. Out of obedience, and believing that her childhood vow was no longer binding, she began to accompany her brothers in the social events of her society, attending dances and balls.
One night, however, she returned home, dressed in her finery, from a ball for Carnival, she experienced a vision of Christ, scourged and bloody, in which he reproached her for her forgetfulness of him, and of how his Heart was filled with love for her due to her promise. As a result she determined to fulfill her vow and entered, when almost 24 years of age, the Visitation Convent at Paray-le-Monial on 25 May 1671, intending to become a nun.
Alacoque was subjected to many trials to prove the genuineness of her vocation. She was admitted to wearing the religious habit on 25 August 1671, but was not allowed to make her religious profession on the same date of the following year, which would have been normal. Finally, she was admitted to profession on 6 November 1672. It is said that she was assigned to the infirmary and was not very skillful at her tasks.
In this monastery Alacoque received several private revelations of the Sacred Heart, the first on 27 December 1673, and the final one 18 months later. The visions revealed to her the form of the devotion, the chief features being reception of Holy Communion on the first Friday of each month, Eucharistic adoration during a "Holy hour" on Thursdays, and the celebration of the Feast of the Sacred Heart. She stated that in her vision she was instructed to spend an hour every Thursday night to meditate on Jesus' Agony in the Garden of Gethsemane. The Holy Hour practice later became widespread among Catholics.
On December 27, 1673, the feast of St. John, Margaret Mary reported that Jesus permitted her, to rest her head upon his heart, and then disclosed to her the wonders of his love, telling her that he desired to make them known to all mankind and to diffuse the treasures of his goodness, and that he had chosen her for this work.
Initially discouraged in her efforts to follow the instruction she had received in her visions, Alacoque was eventually able to convince her superior, Mother de Saumaise, of the authenticity of her visions. She was unable, however, to convince a group of theologians of the validity of her apparitions, nor was she any more successful with many of the members of her own community, and suffered greatly at their hands. She eventually received the support of St. Claude de la Colombière, S.J., the community's confessor for a time, who declared that the visions were genuine. In 1683, opposition in the community ended when Mother Melin was elected Superior and named Margaret Mary her assistant. She later became Novice Mistress, and saw the monastery observe the Feast of the Sacred Heart privately beginning in 1686. Two years later, a chapel was built at the Paray-le-Monial to honor the Sacred Heart.
Alacoque died on 17 October 1690.
After Alacoque the devotion to the Sacred Heart was fostered by the Jesuits and the subject of controversies within the Church. The practice was not officially recognized until 75 years later.
The discussion of Alacoque's own mission and qualities continued for years. All her actions, her revelations, her spiritual maxims, her teachings regarding the devotion to the Sacred Heart, of which she was the chief exponent as well as the apostle, were subjected to the most severe and minute examination, and finally the Sacred Congregation of Rites passed a favourable vote on the heroic virtues of this "servant of God". In March 1824, Pope Leo XII pronounced her Venerable and on 18 September 1864 Pope Pius IX declared her Blessed. When her tomb was canonically opened in July 1830, two instantaneous cures were recorded to have taken place. Her incorrupt body rests above the side altar in the Chapel of the Apparitions, located at the Visitation Monastery in Paray-le-Monial, and many striking blessings have been claimed by pilgrims attracted there from all parts of the world.
Alacoque was canonized by Pope Benedict XV in 1920, and in 1929 her liturgical commemoration was included in the General Roman calendar for celebration on 17 October, the day of her death. In the reforms of 1969, the feast day was moved to the prior day, 16 October.
In his 1928 encyclical Miserentissimus Redemptor, Pope Pius XI affirmed the Church's position regarding the credibility of her visions of Jesus Christ by speaking of Jesus as having "manifested Himself" to Saint Margaret Mary and having "promised her that all those who rendered this honour to His Heart would be endowed with an abundance of heavenly graces"
Alacoque's short devotional writing, La Devotion au Sacré-Coeur de Jesus (Devotion to the Sacred Heart of Jesus), was published posthumously by J. Croiset in 1698, and has been popular among Catholics.
And He [Christ] showed me that it was His great desire of being loved by men and of withdrawing them from the path of ruin that made Him form the design of manifesting His Heart to men, with all the treasures of love, of mercy, of grace, of sanctification and salvation which it contains, in order that those who desire to render Him and procure Him all the honour and love possible, might themselves be abundantly enriched with those divine treasures of which His heart is the source." — from Revelations of Our Lord to St. Mary Margaret Alacoque