Act of Consecration to the Immaculate Heart of Mary

Queen of the Most Holy Rosary, and tender Mother of all people, I consecrate myself to you and to your Immaculate Heart, and recommend to you my family, my country, and the whole human race.
Please accept my consecration, dearest Mother, and use me as you wish, to accomplish your designs upon the world.
O Immaculate Heart of Mary, Queen of Heaven and Earth, rule over me, and teach me how to allow the heart of Jesus to rule and triumph in me and around me, as it has ruled and triumphed in you. Amen.

Pope Pius XII asked for the renewal of the Consecration to the Immaculate Heart of Mary, every year on Mary 31st.