Breaking of the World

[Celebdil]

Hi all,

My question relates to this passage regarding Aragorn's death:

Then a great beauty was revealed in him, so that all who after came there looked on him in wonder; for they saw that the grace of his youth, and the valour of his manhood, and the wisdom and majesty of his age were blended together. And long there he lay, an image of the splendour of the Kings of Men in glory undimmed before the breaking of the world.

Does anyone know what is meant by "the breaking of the world". My understanding is that when the "unfaithful" Numenorians sailed to the Undying lands, Eru "broke" the world in two, with one piece being Valinor and the other piece containing M-E. But that quote seems to indicate a second breaking will occur. Does Tolkien write anything about this second breaking? When will it occur and why?