The King of the universe will raise us up to an everlasting renewal of life, because we have died for his laws. 538 One cannot but choose to die at the hands of men and to cherish the hope that God gives of being raised again by him. 539
Catechism number 1000
This "how" exceeds our imagination and understanding; it is accessible only to faith. Yet our participation in the Eucharist already gives us a foretaste of Christ's transfiguration of our bodies:
Just as bread that comes from the earth, after God's blessing has been invoked upon it, is no longer ordinary bread, but Eucharist, formed of two things, the one earthly and the other heavenly: so too our bodies, which partake of the Eucharist, are no longer corruptible, but possess the hope of resurrection.554