The "Assumption of Our Lady" refers to the belief that the Virgin Mary, the mother of Jesus Christ, was taken up into heaven, body and soul, at the end of her earthly life. This event is celebrated by many Christians, particularly within the Catholic Church, as a sign of Mary's special role in salvation history. The feast of the Assumption is observed on August 15 each year. It emphasizes the honor and dignity of Mary, who is venerated as the Mother of God. The doctrine was officially declared by Pope Pius XII in 1950, affirming the belief in her Assumption as a significant aspect of Christian faith.