LOTR: What If A Mortal Went To The Undying Lands Without The Gift Of The Valar?

gamerant.com:

The Undying Lands are a place of extreme blessings, essentially the heaven counterpart of Middle Earth. Very few are permitted to go there after an ancient rift in which some elves chose immortality, and others chose to take on a mortal lifespan. This decision of the forefathers applied to all the generations that came after them, and those who were on the path of mortality were allowed to live, love, and grow old on Middle Earth, never to see the Undying Lands again. Those who had mortality were the only ones allowed to sail across the sea into the west, and return to the pure lands with blessing. This blessing is known as the Gift of the Valar.

As is well known, this gift could be bestowed on a mortal in very rare circumstances, such as Frodo carrying the ring all the way through the dangerous lands of Mordor to Mount Doom, throwing it into the fires to destroy it for good (admittedly with a lot of assistance from Gollum) and practically saving the world from the eternal evil of Sauron’s reign. Many of the other members of the fellowship were also granted the favor of the valar and allowed to live out the rest of their days in the peace of heaven, including Samwise, Frodo’s truest and dearest friend, Legolas the elf of Mirkwood, and Gimli, the only dwarf ever recorded to be bestowed with such an honor. But what would happen if a mortal being were to try to get to the Undying Lands without having this blessing, this gift bequeathed to them?

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This is a complicated question and one that has several fans in an ongoing debate. Whilst Tolkien did write a lot about and explore the concepts of the Undying Lands, especially in works like The Silmarillion, he never wrote out