"[I]t is for mercy upon Men and their deliverance from Sauron the Deceiver that I would plead [to Manwë]" – Amandil, "Akallabêth," The Silmarillion, 340.
Thus she finds him and three servants upon the ocean, looking towards forbidden sunset. Ban-breakers – abandoned to death and despair.
Yet rebels are her ministry. She gathers their prayers, sifts hearts, and finds – O wondrous! – Men faithful to her cause.
Nienna's gifts come strangely guised to Children. She cannot halt death, but its sting she eases, sending them well-blessed and gently to Námo.
But despair she'll deny: on the fortieth day, she'll speed nine dear ships to Middle-earth on a floodcrest of tears.