C.S. Lewis’ sidecar conversion

While this November will mark the 50th anniversary of C.S. Lewis’ death, this weekend held a less significant anniversary year of an even more important event.

Eighty-two years ago on Saturday, Lewis took a fateful ride in a motorcycle sidecar to Whipsnade Park Zoo near Dunstable, UK.

The traditional date for Lewis’ conversion is September 28, 1931. In his excellent biography, C. S. Lewis – A Life: Eccentric Genius, Reluctant Prophet, Alister McGrath does raise the possibility that it actually happened in June of 1932, but in the end, he believes the traditional date is still probably the better option.

So what exactly happened on September 28 that led to Lewis completely his transition from atheists to Christian apologist? Not much, at least on that specific date. We have to move back a few days and even years to see the events that brought about the change.

First, many of Lewis’ literary influences unbeknownst to him at first, turned out to be Christians and prodding him along toward God. Poet George Herbert, one of the earliest fantasy writers George McDonald, and rhetorician G.K. Chesterton all were writing from a Christian perspective and much more winsomely, from Lewis’ perspective, than secular writers like George Bernard Shaw and H.G. Wells.

In seeing the imagination and “Joy,” which was a major theme of Lewis’ life, on the side of the Christians, Lewis was torn.

On the one side a many-islanded sea of poetry and myth; on the other a glib and shallow “rationalism.” Nearly all that I loved I believed to be imaginary; nearly all I believed to be real I thought grim and meaningless.

This conflict ate away at Lewis until he had to give in and it was just that him resigning himself to the existence of some god.

I gave in, and admitted that God was God, and knelt and prayed: perhaps, that night, the most dejected and reluctant convert in all England.

As Lewis embraced theism, he was not ready to accept Christianity or even the idea of a personal God. Yet, Lewis continued to be influenced by Christian friends, particularly Owen Barfield, Hugo Dyson and J.R.R. Tolkien. In February 3, 1930, Lewis writes Barfield:

Terrible things are happening to me. The “Spirit” or “Real I” is showing an alarming tendency to become much more personal and is taking the offensive, and behaving just like God. You’d better come on Monday at the latest or I may have entered a monastery.

He did not want to take that final step, just as much as he did not want to take the first step.

What particularly concerned Lewis was the idea of God sending Jesus to die for our sins. What could that death thousands of years ago mean for our lives today? Lewis wasn’t wrestling with whether it was true, but whether it had meaning or significance.

Addison's Walk

Addison’s Walk

On Saturday, September 19, 1931, Lewis had a long talk with Dyson and Tolkien as they strolled along Addison’s Walk. The two Christians were able to demonstrate to Lewis that Jesus’ resurrection is the True Myth. It is the mythical story that really happened.

The reason Lewis had felt such an affinity to all of the pagan myths is that they had slivers of truth in them. They were anticipations of the truth myth that was to come later. Similarities between Christianity and other religions don’t prove Christianity to be false, rather they give it even more credence.

Lewis wrote to his friend Arthur Greeves about that night.

I have just passed on from believing in God to definitely believing in Christ – in Christianity. I will try to explain this another time. My long night talk with Dyson and Tolkien had a good deal to do with it.

Nine days later, Lewis is being driven to Whipsnade Zoo by his brother Warnie on a motorcycle when everything changes for good. The line has finally been crossed.

I know very well when, but hardly how, the final step was taken. I was driven to Whipsnade one sunny morning. When we set out I did not believe that Jesus Christ is the Son of God, and when we reached the zoo I did.

For Lewis, this changed everything. As he would later write, “Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important.”

It took a process for Lewis to arrive at the point where he recognized Christianity as truth, but once that was grasped, he was never the same. The sidecar ride to Whipsnade brought everything into focus for him and Christians have benefited from that moment for 82 years.


  1. Tess

    Email is lower case. I appreciate this, because my children think his books are pagan and mythical.

  2. This account rings true in that most adults who built around them a wall of unbelief usually have to dismantle it brick by brick. The challenge for the witness is to allow this process to happen and pray with ceasing allowing the Spirit to minister to the seeker.

About Author

Aaron Earls

Christian. Husband. Daddy. Writer. Online editor for Facts & Trends Magazine. Fan of quick wits, magical wardrobes, brave hobbits, time traveling police boxes & Blue Devils.