The Immaculate Conception

The CCC explains the doctrine of the Immaculate Conception:

491 Through the centuries the Church has become ever more aware that Mary, "full of grace" through God, was redeemed from the moment of her conception. That is what the dogma of the Immaculate Conception confesses, as Pope Pius IX proclaimed in 1854:

The most Blessed Virgin Mary was, from the first moment of her conception, by a singular grace and privilege of almighty God and by virtue of the merits of Jesus Christ, Savior of the human race, preserved immune from all stain of original sin.

There are many ways to understand the Immaculate Conception. One way is to understand Mary as an Avatar, Daughter of Durga, who took birth as the Mother of Jesus, in order to perform the work She needed to accomplish in conjunction with Jesus. By stating that Mary was kept free from the original forgetfulness (or original sin), the Church is stating that Mary was an Avatar. By stating that her initial and subsequent freedom from original forgetfulness was a result of the "merits of Jesus Christ", the Church is stating that Mary took birth as human form before Jesus did, but only because of the work both Mary and Jesus were to accomplish.

Hail Mary, Full of Grace
The Lord is with You.
Blessed are You among women,
And blessed is the fruit of Your womb, Jesus.
Holy Mary, Mother of God,
Pray for us sinners,
Now and at the hour of our death.
Amen.