Feast of the Immaculate Conception, December 8 USA.
Pope Pius IX, Ineffabilis Deus
“We declare, pronounce, and define that the doctrine which holds that the most Blessed Virgin Mary, in the first instance of her conception, by a singular grace and privilege granted by Almighty God, in view of the merits of Jesus Christ, the Savior of the human race, was preserved free from all stain of original sin, is a doctrine revealed by God and therefore to be believed firmly and constantly by all the faithful.”
In other words, the Immaculate Conception was not a precondition for Christ’s act of redemption but the result of it. It is the concrete expression of God’s love for Mary, who gave herself fully, completely, and without hesitation to His service.
Sidewalks Chalk 
O Immaculate Heart of Mary,
Heavenly beauty and splendor of the Father,
You are the most valued Heavenly treasure.
New Eve, immaculate in soul, spirit and body,
Created of the godly seed by the Spirit of God,
You are the spiritual Mother of mankind.
Pure Virgin, full of grace then and now,
Your whole being was raised Heavenly in full glory,
To be elevated above all the hosts within the Kingdom of God.
O Heavenly Mother, Queen of Heaven and earth,
I recognize the glory of your highest title,
The Immaculate Heart of Mary!
Loving Mother, dispenser of endless blessings,
You who continuously intercedes on our behalf,
Please present my need before your loving Son Jesus
The inscription is in my heart.
In this I pray,
Amen