The devotion to the Sacred Heart of Jesus can be traced back to the eleventh and twelfth centuries. It wasn’t until the private revelations of St. Margaret Mary Alacoque (1647-1690), however, that Christ chose to reveal the desires of his Heart and to confide the task of imparting new life to the devotion. Jesus promised that all those who practice the devotion to his Sacred Heart would receive every one of these graces, also known as the Twelve Promises of the Sacred Heart:

1. I will give them all the graces necessary in their state of life.
2. I will establish peace in their homes.
3. I will comfort them in all their afflictions.
4. I will be their secure refuge during life, and above all, in death.
5. I will bestow abundant blessings upon all their undertakings.
6. Sinners will find in my Heart the source and infinite ocean of mercy.
7. Lukewarm souls shall become fervent.
8. Fervent souls shall quickly mount to high perfection.
9. I will bless every place in which an image of my Heart is exposed and honored.
10. I will give to priests the gift of touching the most hardened hearts.
11. Those who shall promote this devotion shall have their names written in my Heart.
12. I promise you in the excessive mercy of my Heart that my all-powerful love will grant to all those who receive Holy Communion on the First Fridays in nine consecutive months the grace of final perseverance; they shall not die in my disgrace, nor without receiving their sacraments. My divine Heart shall be their safe refuge in this last moment.