Careful, it does not mean resurrection (this is the body returning to life, as happened with Lazarus and Jesus). The Assumption was when at the moment of her death, Mary was assumed (brought) into Heaven both body and soul; and this was done through no power of her own.
Well, as the Creed says, "we believe in the resurrection of the body and the life everlasting". That which awaits us is where Mary is. What am I missing?