WHat do you reckon was the saddest part of the legendarium?

[Elmo]

"There at last when the mallorn leaves were falling, but spring had not yet come, she laid herself to rest upon Cerin Amroth; and there is her green grave, until the world is changed, and all the days of her life are utterly forgotten by men that come after, and elanor and niphredil bloom no more east of the Sea.”

I find it very sad the fact that Arwen was completely forgotten afterwards, almost like she didn't exist at all. Shows the pains of mortality etc. Pretty depressing for me anyway.