"From among all the proofs of the infinite goodness of our savior none stands out more prominently than the fact that, as the love of the faithful grew cold, He, Divine Love Itself, gave Himself to us to be honored by a very special devotion and that the rich treasury of the Church was thrown wide open in the interests of that devotion." These words of Pope Pius XI refer to the Sacred Heart Devotion,which in its present form dates from the revelations given to saint Margaret Mary Alacoque in 1673-75.
The devotion consists in the divine worship of the human heart of Christ, which is united to His divinity and which is a symbol of His love for us. The aim of the devotion is to make our Lord king over our hearts by prompting them to return love to Him (especially through an act of consecration by which we offer to the Heart of Jesus both ourselves and all that belongs to us) and to make reparation for our ingratitude to God.
O Heart of love,
I put all my trust in Thee;
for I fear all things from my own weakness,
but I hope for all things from Thy goodness.
- Saint Margaret Mary Alacoque