Blessed is the Virgin Mary who kept the word of God
and pondered it in her heart.

"In order that favors in greater abundance may flow on all Christians, nay, on the whole human race, from the devotion to the most Sacred Heart of Jesus, let the faithful see to it that to this devotion the Immaculate Heart of the Mother of God is closely joined. For, by God's Will, in carrying out the work of human Redemption the Blessed Virgin Mary was inseparably linked with Christ in such a manner that our salvation sprang from the love and the sufferings of Jesus Christ to which the love and sorrows of His Mother were intimately united. It is, then, entirely fitting that the Christian people - who received the divine life from Christ through Mary - after they have paid their debt of honor to the Sacred Heart of Jesus should also offer to the most loving Heart of their heavenly Mother the corresponding acts of piety affection, gratitude and expiation." -  Haurietis Aquas:  Encyclical of Pope Pius XII on Devotion to the Sacred Heart

Prayer to the Immaculate Heart
by St. John Eudes

Hail Mary! Mother of God the Son.
Hail Mary! Spouse of the Holy Spirit.
Hail Mary! Temple of the Most Blessed Trinity.
Hail Mary! Pure Lily of the Effulgent Trinity.
Hail Mary! Celestial Rose of the Ineffable Love of God.
Hail Mary! Virgin pure and humble, of whom the King of heaven willed to be born and with thy milk to be nourished.
Hail Mary! Virgin of Virgins,
Hail Mary! Queen of Martyrs, whose soul a sword transfixed.
Hail Mary! Lady most blessed! unto whom all power in heaven and earth is given.
Hail Mary! My Queen and my Mother! my Life, my Sweetness and my Hope,
Hail Mary! Mother Most Amiable,
Hail Mary! Mother of Divine Love,
Hail Mary! Immaculate! Conceived Without Sin!
Hail Mary! Full of Grace! The Lord is with Thee!
Blessed art thou among women! And blessed is the Fruit of thy womb, Jesus!
Blessed be thy spouse, Saint Joseph,
Blessed be thy father, Saint Joachim,
Blessed be thy mother, Saint Anne,
Blessed be thy guardian, Saint John,
Blessed be thy holy angel, Saint Gabriel,
Glory be to God the Father, Who chose thee,
Glory be to God the Son, Who loved thee,
Glory be to God the Holy Spirit, Who espoused thee.
O Glorious Virgin Mary, may all people love and praise thee.