The belief in the Assumption of Mary flows immediately from the belief in her Immaculate Conception. The belief that Mary was preserved from sin by the free gift of God, she would not be bound to experience the consequences of sin--death--in the same way we do. Mary's assumption shows the result of this freedom from sin--the immediate union of her whole being with her Son Jesus Christ with God at the end of her life.

The belief that the Blessed Virgin Mary, at the end of her earthly life, was assumed both body and soul into heavenly glory.