The “Mystery of the Assumption” refers to the belief that the Virgin Mary was taken body and soul into heaven at the end of her earthly life. This event is celebrated in Christianity as the Feast of the Assumption. It is considered a mystery of faith because it is not explicitly described in the Bible but is based on Church tradition and teaching. The doctrine emphasizes Mary’s unique role in salvation history and her special closeness to God. For many believers, it is a sign of hope in the resurrection and eternal life promised to all faithful Christians.