This dogma of the Assumption is predicated upon centuries of faith and conviction that Mary, Christ's Blessed Mother, was assumed body and soul into heaven. The Eastern Rite churches have always celebrated the Dormition – the “Falling Asleep” of the Blessed Virgin.
Christians throughout the centuries show their reverence for what Christ has done through the saints by venerating their relics. We hear of the veneration of relics of the great saints. Even today we venerate relics. But there is no mention of the veneration of the bodily relics of the Blessed Virgin – because there are none. Jesus Christ, her Son, has taken her up to heaven.