Our Lord Jesus Christ revealed to Saint Margaret Mary many favours He would grant all souls devoted to His Sacred Heart. The principal ones are as follows:

1. I will give them all the graces necessary for their state of life.
2. I will give peace in their families.
3. I will console them in all their troubles.
4. I will be their refuge in life and especially in death.
5. I will abundantly bless all their undertakings.
6. Sinners shall find in my Heart the source and infinite ocean of mercy.
7. Tepid souls shall become fervent.
8. Fervent souls shall rise speedily to great perfection.
9. I will bless those places wherein the image of My Sacred Heart shall be exposed and venerated.
10. I will give to priests the power to touch the most hardened hearts.
11. Persons who propagate this devotion shall have their names eternally written in my Heart.
12. I promise thee in the excessive mercy of My Heart that My all-powerful love will grant to all those who communicate on the First Friday in nine consecutive months, the grace of final penitence; they shall not die in My disgrace nor without receiving the Sacraments; My Divine Heart shall be their safe refuge in this last moment.