La naturaleza de la Tierra Media

J.R.R. Tolkien believed that The Silmarillion was the foundation for his imagined world, but despite being the primary and central work, he was not able to bring it to its final form, and it fell to his son, Christopher, to build the latest version of a "Silmarillion" from the stories left by his father when he died. Because, starting from a closed myth, with a beginning and an end, the narrative material had come to acquire an enormous extension, with important characters emerging from the Elder Days, among whom Galadriel was the most important. Therefore, Tolkien had to do a lot of "rewriting" to make The Silmarillion fit in with The Lord of the Rings.