The Catholic Church teaches the Immaculate Conception, that Mary was conceived without original sin. ... Two special factors rendered Mary impeccable or unable to sin. The first was her constant awareness of God, living always in His presence, and the second was her reception of special and extraordinary graces.

How did Mary not have original sin?

The Catholic Church teaches that the Blessed Virgin Mary was born without Original Sin because she, too, was conceived without Original Sin. ... That "singular grace and privilege" was granted to Mary because of God's foreknowledge that she would, at the Annunciation, consent to be the mother of His Son.

Was Virgin Mary always Virgin?

Eastern Orthodox Church recognizes Mary as Aeiparthenos, meaning "ever-virgin". The 2nd century Gospel of James affirms that Mary was always a virgin before, during and after childbirth, stating that Jesus' brothers (adelphos) are sons of Joseph from a previous marriage.