J.R.R. Tolkien was a philologist, not a scholar of myth. He admitted as much in “On Fairy-Stories,” an essay originally given as a lecture in 1939. Nonetheless, “On Fairy-Stories” shows Tolkien was knowledgeable about myth scholarship of his and preceding generations and had drawn his own conclusions on the origins and functions of myth. For Tolkien, myth was the process by which human beings comprehend and describe the world around them: “The incarnate mind, the tongue, and the tale are in our world coeval.”
Tolkien had begun writing The Lord of the Rings at about the time he delivered “On Fairy-Stories.” His ideas about the cognitive role of myth play out in the novel.