This memorial honors Mary's heart, united to her son's Sacred Heart, as a symbol of her love for God and humanity.
The Feast of the Immaculate Heart of Mary is celebrated on the Saturday following the Solemnity of the Sacred Heart of Jesus. This feast honors the interior life of Mary—her joys and sorrows, her love for God and for us, her perfect union with Christ.
Luke's Gospel twice refers to Mary's heart:
"But Mary kept all these sayings, pondering them in her heart." — Luke 2:19
"And he went down with them and came to Nazareth. He was subject to them, and his mother kept all these sayings in her heart." — Luke 2:51
Mary's heart was not passive; it was actively contemplating, wondering, believing. Her heart was the first tabernacle of the Word made flesh.
At the Presentation, Simeon foretold that Mary's heart would share in her Son's sufferings:
"Yes, a sword will pierce through your own soul, that the thoughts of many hearts may be revealed.'" — Luke 2:35
This prophecy found fulfillment at the Cross, where Mary stood and watched her Son die. Her heart was pierced by the same lance that opened his side.
Devotion to Mary's heart developed alongside devotion to the Sacred Heart of Jesus. Saint John Eudes (1601-1680) was instrumental in promoting both devotions and composing liturgical texts for them.
The apparitions at Fatima (1917) gave new impetus to this devotion. Mary requested:
She promised: "In the end, my Immaculate Heart will triumph."
Mary asked that on five consecutive first Saturdays, the faithful:
All this is done in reparation for sins committed against her Immaculate Heart.
The Immaculate Heart represents:
The Immaculate Heart of Mary is inseparable from the Sacred Heart of Jesus. What Jesus suffered, Mary suffered with him. Their hearts beat as one in love for humanity and desire for our salvation.