C.S. Lewis's Conversion: Tolkien and the 'True Myth'

Some conversions arrive like a thunderbolt. C.S. Lewis's arrived on the road to a zoo, and he could name the day it happened but never quite explain how.

Years later, describing the day in 1931 he became a Christian, he put it with almost comic flatness:

"When we set out I did not believe that Jesus Christ is the Son of God, and when we reached the zoo I did." — C.S. Lewis, Surprised by Joy

He was driven to Whipsnade Zoo that morning in the sidecar of his brother's motorbike, and somewhere along the way he crossed from unbelief to belief without feeling he had spent the journey deciding anything. It felt, he said, less like a decision than like waking from a long sleep to find himself already awake. To see how a confirmed atheist got there, you have to go back nine days, to a windy night, two friends, and an argument about myth.

The atheist who loved myths

By his early thirties, Lewis had been an atheist for years and was teaching English at Oxford. His mind, though, was split in a way he had never managed to reconcile.

One side of him was all intellect, quick to call a thing false. The other side had loved stories since boyhood, especially the old myths of gods who die and rise again — Balder, Adonis, Bacchus. Those stories stirred a deep, aching longing he called Joy, and he trusted the feeling even while his intellect dismissed the stories as untrue.

Keeping the two apart was the trick that let him enjoy myth as an atheist. A dying-and-rising god in Norse legend could move him precisely because he never had to ask whether it happened; he filed it under beautiful, not factual. Myths, as he once put it in a line remembered by Tolkien's biographer, were "lies breathed through silver": lovely in the telling, but false.

The Gospels were the one place that filing system broke down. They wore the same shape as the myths he loved — a god who dies, and whose death somehow brings life — but they also claimed to be literally, historically true. So he couldn't simply enjoy them the way he enjoyed Balder. The factual claim dragged the story in front of his sceptical intellect, which returned its usual verdict on myth: made up. That verdict was the wall between him and Christianity.

The walk on Addison's Walk

It started with a dinner. On the evening of 19 September 1931, Lewis had two friends up to his rooms at Magdalen College, Oxford. One was Hugo Dyson, a lecturer visiting from Reading who made no secret of his Christian faith. The other was J.R.R. Tolkien, an Oxford scholar of old languages, still years from publishing The Lord of the Rings.

After dinner the three of them walked out along Addison's Walk, the tree-lined path that loops around a meadow behind the college, and fell to arguing about myth. Lewis remembered the weather as clearly as the conversation. Their talk of "metaphor and myth," he wrote to his friend Arthur Greeves a few days later, was "interrupted by a rush of wind which came so suddenly on the still, warm evening and sent so many leaves pattering down that we thought it was raining."

Tolkien went straight at the thing blocking Lewis's way. The old myths were not lies, he said. They were broken light — glimpses of something real that people had reached for and never quite caught, and the urge to tell such stories was itself a gift from the God who made storytellers. So the dying-and-rising god Lewis loved in Balder was not a reason to dismiss the Gospel. It was a rehearsal for it. The one difference, and everything turned on it, was that in the Gospel the storyteller is God, and the story had walked out of myth and into history. It had actually happened.

They talked past three in the morning. Tolkien went home; Lewis and Dyson kept going until four. Years later, Lewis named the two of them as the people most responsible for what came next.

"Myth became fact": what Lewis meant by true myth

A few weeks later Lewis wrote to Greeves and put it in a sentence that has been quoted ever since:

"The story of Christ is simply a true myth: a myth working on us in the same way as the others, but with this tremendous difference that it really happened: and one must be content to accept it in the same way, remembering that it is God's myth where the others are men's myths." — C.S. Lewis, letter to Arthur Greeves, 18 October 1931

Lewis had assumed that if the Jesus story resembled the older myths, it was probably just another myth. Tolkien turned the resemblance around. The echo was not the problem; it was the point. If human beings across the world kept telling one particular kind of story, perhaps that was worth taking seriously rather than explaining away.

He spent the rest of his life saying it plainly for ordinary readers. In Mere Christianity he called the pagan parallels "good dreams" — "those queer stories scattered all through the heathen religions about a god who dies and comes to life again." In a 1944 essay, "Myth Became Fact," he set the paradox in a single line: "By becoming fact it does not cease to be myth: that is the miracle."

Tolkien answered the "lies breathed through silver" jibe with a poem, Mythopoeia, addressed teasingly from "Philomythus to Misomythus" — myth-lover to myth-hater. Its whole argument compresses into one line: "We make still by the law in which we're made."

Was Jesus just a recycled pagan god?

If you have spent any time online, you have probably met the opposite claim: that Jesus is a recycled pagan god, born of a virgin on 25 December like Horus, resurrected like Mithras, a copy-paste of older religions and therefore invented.

The claim has a specific history, though it is rarely stated. It does not come from the leading New Atheist writers. It traces back to the Victorian folklorist James Frazer, to some shaky nineteenth-century Egyptology, and, for most people who have met it, to a 2007 internet film called Zeitgeist.

Some of its sharpest critics aren't Christian apologists at all; they are secular scholars. The agnostic historian Bart Ehrman, who doubts the resurrection himself, is blunt about it: the alleged parallels between Jesus and the pagan saviour-gods, he writes, "in most instances reside in the modern imagination." The specifics tend to dissolve on inspection. The Roman cult of Mithras largely postdates Christianity; Mithras was born from a rock, not a virgin; Horus was neither virgin-born nor crucified. A few ancient cultures did tell genuine death-and-return stories, and scholars still argue over them, but the tidy checklist of Jesus copying Horus or Mithras is mostly a modern assembly, not an ancient fact.

That clears away the weak version of the objection. The deeper question is the one Tolkien raised. Suppose the echoes were real. What would a world full of half-remembered stories about a dying and returning god actually suggest? Not necessarily a forgery. Possibly a signature.

The longing underneath the stories

Lewis's own tradition had long had a name for that instinct. An old line from Ecclesiastes fits it almost too well:

"He has made everything beautiful in its time. Also, he has put eternity into man's heart, yet so that he cannot find out what God has done from the beginning to the end." — Ecclesiastes 3:11 (ESV)

(Translations differ here. Where the ESV puts "eternity" into the human heart, the King James reads "the world," so it is worth holding loosely.) Read slowly, the verse almost describes the ache itself: a built-in longing for something beyond us, paired with an inability to see the whole picture. People reach; they do not quite grasp. On that reading, the world's recurring stories are not an embarrassment. They are close to what you would expect.

This is not the claim that every myth secretly retells the Gospel. Plenty of stories have nothing to do with it. It is a claim about the longing underneath them. When the apostle Paul stood among the philosophers of Athens, he did not call their instincts worthless; he told them they had been feeling their way toward a God who was not far from any of them, and he quoted their own poets back to them. That is the move Tolkien made on Addison's Walk: not "your myths are lies," but "your myths were reaching for this."

But the resemblance by itself never settles which story is true. Many myths rhyme with our longings. What set the Gospel apart, for Lewis, was that it also claimed to have happened — not a pattern in the collective imagination but an event with a date. The longing points; history is where he came to think it pointed. Christians still differ on how far that reaching goes and what God finally makes of it, and Lewis's own point was a modest one: the resemblance to older stories had never, for him, been a reason to disbelieve. It turned out to be a reason to look again.

The road to the zoo

Which brings us back to the sidecar. Lewis had crossed from atheism to belief in God about two years earlier — in 1929 by his own dating, though his biographer Alister McGrath makes a careful case for 1930. Whichever year it was, the last step came on 28 September 1931, on the short ride to Whipsnade. He set out unsure and arrived settled, in the quiet, almost anticlimactic way he never fully managed to explain.

What followed is why the story survives. The man who took that ride went on to write the Chronicles of Narnia, The Problem of Pain, and the radio talks that became Mere Christianity, and to become one of the most widely read Christian authors of the twentieth century. All of it downstream of one windy night on Addison's Walk, and a single idea that turned the thing blocking his way into the thing that let him through.

Keep exploring

Lewis's "true myth" is one answer to an old question: why do the world's religions rhyme, and what should we make of it? People have argued it for centuries, and it opens onto deeper questions about how — and whether — God makes himself known.

Want to think it through? You can talk it over with TheoGPT — trace the history, weigh the different views, or put the hardest version of the question and see where it leads.

Curious about the poem Tolkien wrote in reply? It was published as "Mythopoeia" in his collection Tree and Leaf.

Sources

• Scripture: Ecclesiastes 3:11 (ESV); Paul at the Areopagus, Acts 17:16–34.
• C.S. Lewis, Surprised by Joy (1955) — Lewis's own account of his conversion.
• C.S. Lewis, letters to Arthur Greeves, 1 and 18 October 1931, in The Collected Letters of C.S. Lewis, Vol. I.
• C.S. Lewis, Mere Christianity (1952) and the essay "Myth Became Fact" (1944).
• J.R.R. Tolkien, "Mythopoeia," in Tree and Leaf.
• Humphrey Carpenter, J.R.R. Tolkien: A Biography (1977) — the source of the "lies breathed through silver" remark.
• Alister McGrath, C.S. Lewis: A Life (2013) — on the 1929/1930 dating of Lewis's move to theism.
• Bart Ehrman, Did Jesus Exist? (2012) — on the "pagan copycat" parallels.