Devotion to the immaculate Heart of Mary is primarily based upon the Sacred Scriptures. In the New Testament, there are two references to the Heart of Mary in the Gospel according to St. Luke: ..”Mary treasured all these things and reflected on them in her heart. ” (Lk 2: 19) and ” His mother meanwhile kept all these things in her heart. ” (Lk 2:51) In the Old Testament, the heart is seen as the symbol of the depths of the human soul, the center of its choices and commitments. For all mankind, it is a symbol of love. In the Book of Deuteronomy we are told, “You shall love the Lord, your God, with all your heart, and with all your soul and with all your strength.” (Dt. 6:5) When Our Lord Jesus Christ was asked by the scribes which was the first commandment, he answered them by quoting this verse to them. (see Mk. 12:29-31)
It was the Heart of Mary which expressed her “yes” to God. .This was her response to the message sent through the angel at the Annunciation. By her loving consent, Mary first conceived Christ in her heart and then in her womb. Our Lord Jesus, Himself: when reminded by a woman in the crowd how blessed was the womb which gave birth to Him, responds, “Blessed rather are those who hear the word of God and keep it.” (Lk. 11:28) Pope John Paul II , in his first encyclical, Redemptor Hominis, wrote “the mystery of Redemption was formed under the heart of the Virgin of Nazareth when she pronounced her ‘fiat.'” (R.H. #22)
read more at the source of this article… .http://campus.udayton.edu/mary/meditations/DevImacc.html
