Meditation

Devotion to the Sacred Heart, as we know it, began about the year 1672. On repeated occasions, Jesus appeared to Saint Margaret Mary Alacoque, a Visitation nun, in France, and during these apparitions He explained to her the devotion to His Sacred Heart as He wanted people to practice it. he asked to be honored in the symbol of His Heart of flesh; he asked for acts of reparation, for frequent Communion, Communion on the First Friday of the month, and the keeping of the Holy Hour.

When the Catholic Church approved the devotion to the Sacred Heart of Jesus, she did not base her action only on the visions of Saint Margaret Mary. The Church approved the devotion on its own merits. There is only one Person in Jesus, and that Person was at the same time God and Man. His Heart, too, is Divine -- it is the Heart of God.

taken from: https://www.ewtn.com/devotionals/heart/meditations.htm