system
Given the following post, respond as if you're commenting on Reddit:
human
(LoTR) Can mortals become immortal?

We see that Elves can give up their immortality, but can a mortal (ie man or dwarf) receive immortality without using dark magic like Sauron or sailing to the undying lands like Gimli?

Also could Orcs and Uruks give up their immortality?
gpt
No.  Even the Valar cannot take away the Gift of Men, mortality, that Ilúvatar decreed.

Mortals that sail to the Undying Lands do not gain immortality.  They are the Undying Lands because of the fact that the immortals dwell there, not because there is any special property of the land itself to grant life.