On August 15, Christians celebrate the Assumption of the Virgin Mary, the belief that upon completing her earthly life, she was taken body and soul into heavenly glory. Formally defined as a dogma by Pope Pius XII in 1950, this doctrine is understood as the culmination of centuries of Christian faith, not a modern invention. While not explicitly detailed in the Bible, theologians ground the belief in scriptural passages such as Genesis 3:15 and Luke 1:28, viewed through the lens of a consistent Tradition that grew from the early Church Fathers. Arguments of fittingness connect the Assumption to Mary’s other unique privileges, including her Immaculate Conception, Divine Maternity, and Perpetual Virginity. The Church’s ancient liturgical celebration of her Dormition (“Falling Asleep”) further attests to this long-held belief. Ultimately, the Assumption signifies Mary’s complete union with her Son, Jesus, and serves as a beacon of hope for all Christians, prefiguring the resurrection that awaits the faithful.