Margaret Mary Alacoque

Margaret Mary Alacoque was born on July 22, 1647, at Lhautecour in Burgundy, France, to Claude Alacoque and Philiberte Lamyn, parents described in historical accounts as distinguished for their virtue rather than temporal wealth. From early childhood she exhibited an intense devotion to the Blessed Sacrament and a marked preference for prayer. She received her first communion at the age of nine, and at some point during her youth was confined to bed by paralysis for four years. During this period she made a vow to the Blessed Virgin to consecrate herself to religious life; according to her account, she was restored to full health upon making this vow.

Following her father's death, the family endured financial hardship and social humiliation. When Margaret was seventeen, the family property was recovered and she was encouraged by her mother to pursue a place in society. Believing her childhood vow was no longer binding, she briefly took part in worldly amusements. She later described a vision of Christ reproaching her for this infidelity, an experience she regarded as a source of lasting sorrow.

Despite considerable family pressure to marry, Margaret entered the Visitation convent at Paray-le-Monial in 1671 as a novice. She found the ascetical demands of community life difficult and regarded herself as clumsy and burdensome to her sisters. Nevertheless, from the beginning of her religious profession she engaged in a sustained interior life of prayer that would come to define her vocation.

Beginning in December 1673, Margaret Mary Alacoque received a series of apparitions of Christ that she and her supporters referred to as the Great Revelations, which took place over the course of approximately eighteen months. In these experiences, Christ presented His Sacred Heart as the physical heart of Jesus, understood as a symbol of His infinite love for humanity. She believed this love was met in turn by widespread ingratitude, indifference, and contempt among the faithful. Through these revelations, she understood herself to be charged with several interconnected tasks: promoting devotion to the Sacred Heart, encouraging acts of reparation for sin and ingratitude, and petitioning ecclesiastical authorities for the institution of a special liturgical feast dedicated to the Sacred Heart, to be observed on the Friday following the octave of Corpus Christi.

The advancement of her mission was significantly shaped by her relationship with her confessor, the Jesuit priest Claude de la Colombière, who came to recognize the authenticity of her spiritual experiences and provided crucial support during a period when her claims met with uncertainty and resistance within her own religious community. His affirmation helped legitimate her mission and allowed its influence to extend beyond the convent at Paray-le-Monial.

At her death on October 17, 1690, also at Paray-le-Monial, she was reported to have uttered the words 'My God, I desire only thee.' Her life within the convent had been one of ongoing tension between her mystical vocation and the ordinary rhythms of community religious life, a tension she navigated largely through her conviction that she had been entrusted with a specific apostolate for the broader Church.

Margaret Mary Alacoque's primary contribution to Catholic spiritual life was her role in giving the modern form of devotion to the Sacred Heart of Jesus its definitive shape and doctrinal content. While veneration of the heart of Christ had earlier antecedents in Catholic tradition, her reported revelations provided a specific theological framework — centering on divine love, human ingratitude, and the call to reparation — that became foundational to how this devotion was subsequently understood and practiced.

Central to her contribution was the promotion of a dedicated feast of the Sacred Heart. Her request, conveyed through her confessor and her writings, that a Friday following the octave of Corpus Christi be observed as a solemn liturgical commemoration represented a concrete institutional goal that she pursued throughout her apostolate. This proposal, rooted in what she understood to be an explicit divine commission, would eventually be taken up by Church authorities after her death.

Her collaboration with Claude de la Colombière also stands as a significant element of her legacy. The Jesuit priest's recognition of her mission provided an institutional bridge between her cloistered life and the wider Catholic world, and his support lent theological and pastoral credibility to revelations that might otherwise have remained confined to her community.

Margaret Mary Alacoque was beatified in 1864. She was subsequently canonized by Pope Benedict XV in 1920, an act that formally confirmed her place within the calendar of Catholic saints. Her feast day is observed on October 16, though some traditions mark it on October 17, the date of her death.

Following her canonization, she came to be recognized as a central figure in the spread of Sacred Heart devotion throughout the Catholic world, and is venerated as a patron of those with a special devotion to the Sacred Heart, of those who have lost parents, and of those affected by polio. The convent at Paray-le-Monial, where she lived and died, became associated with the broader movement of Sacred Heart devotion that her mission helped to generate.

Her spiritual director, Claude de la Colombière, was himself later canonized, a development that retrospectively affirmed the significance of the spiritual partnership between the two figures. The title by which she is commonly known in Catholic tradition — apostle of devotion to the Sacred Heart of Jesus — reflects the historical judgment that her life and revelations were foundational to this devotion in its modern expression.