Christ has come and established His kingdom in the world for the sake of the resurrection and the life to come.  If then, the article that is the foundation, cause and end of all articles of faith is overthrown and taken away, all the rest must fall and go down with it.  Therefore it is certainly necessary diligently to stress and confirm this article...Thus we honorably carry the dead to the grave, follow the corpse, sing and pray as a testimony and indication of our faith that these very dead, and we together with them, will rise on Judgment Day and that the bodies will not be different bodies, although they will be constituted differently and transfigured.  (WLS - Vol III, p. 1215, para 3874).