Silmaril
This retrieved Silmaril was set into the Nauglamír (the Necklace of the Dwarves) [3]. This caused immense tragedy, leading to the ruin of the Elven kingdom of Doriath due to the jealousy of the Dwarves and the obsession of the Sons of Fëanor.
Tolkien, a devout Catholic and medieval scholar, infused the Silmarils with profound theological meaning.
They are the literal containers of pure light, fighting against the darkness of Morgoth. silmaril
Varda, the Queen of the Valar (the angelic deities of Arda), hallowed the Silmarils. After her blessing, no unclean flesh, evil being, or mortal hand could touch them without being scorched and withered by holy fire. 2. The Theft and the Doom of the Noldor
Through these fates, the three Silmarils found their final resting places within the three realms of the physical universe: one in the sky, one in the earth, and one in the sea. Tolkien writes that the world will not see them reunited until the End of Days, when the world is broken and remade, and Feanor returns to yield the gems so that the Two Trees may be revived. This retrieved Silmaril was set into the Nauglamír
remains in the sky, carried by Eärendil.
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The Silmarils were crafted by , the Crown Prince of the Noldor and the most brilliantly gifted artisan to ever walk Middle-earth. Fëanor was driven by the supreme artistic desire of "sub-creation"—the act of taking the raw beauty of Eru Ilúvatar’s world and fashioning it into something magnificent and new.
The Silmarils are destined to be reunited only at the end of time, in the final battle (the Dagor Dagorath), where their light will be surrendered to restore the Two Trees of Valinor.