Elessar
". . . yet at last he felt the approach of old age and knew that the span of his life-days was drawing to an end . . . I am the last of the Numenoreans and the latest King of the Elder Days; and to me has been given not only a span thrice that of Men of Middle-earth, but also the grace to go at my will, and give back the gift. Now, therefore, I will sleep."
Here The Two Towers film distills the acceptance of mortality theme of The Lord of the Rings into two breathtaking images.
"And long there he lay, an image of the splendour of the Kings of Men in glory undimmed before the breaking of the world."
How the dead leaves blowing can symbolize time passing and mortality is wonderful and strange to me.
Quotes from Return of the King, Appendix A The Tale of Aragorn and Arwen
screen caps from
sagralisse (I was going to use the versions on my hard drive, but her quality is the best)
http://sagralisse.mediawood.net/viggo/index.htm