The Island I Keep Mistaking for the Shore
Published on March 25, 2026 by Paul Blake
There is a concept in C.S. Lewis's The Pilgrim's Regress that I have not been able to shake.
John, the protagonist, is seized—not reasoned into, not talked into—seized by a vision of an Island. Lewis describes it as a place of unbearable beauty. Something that awakens a longing so deep it feels older than memory and truer than the present. The moment passes, but the longing doesn't. It becomes the engine of the entire story.
What strikes me is that John does not invent the Island. He doesn't choose it. He doesn't even fully understand it.
It is given.
The Longing That Finds You
I know this experience. I suspect most of us do. Lewis presupposes that all mankind receives something akin to it.
I agree with that presupposition.
We may not all get an image of an Island per se. Yet I think each of us can point at some unfulfilled longing deep within us. To find joy that surpasses anything we have tried.
You may have thought you found it—nevertheless, when the newness wears off, the longing returns stronger than ever.
There is a particular ache—I have felt it acutely over the past year—for a kind of union. A holy, good, real marriage. To be fully known by someone, and fully received. To build a life with another person where God is at the center and love is the atmosphere.
That longing didn't come from a self-help book or a romantic movie. It arrived the way Lewis describes the Island: unbidden, sharp, true.
And this matters much more than it might seem at first.
Because if the longing is received and not constructed, then it is pointing somewhere real.
What the World Keeps Offering Instead
As John journeys through The Pilgrim's Regress, the world does not deny his longing. It does something more dangerous: it constantly tries to redirect it.
You don't need the Island, every voice says. What you want is this instead.
Rationalism says the longing is just a projection of your own psychology. Romanticism says the longing is satisfied by the intense experience. Hedonism says forget the meaning, just take the pleasure. Moralism says earn it—be good enough and the Island will come.
Lewis is not warning us against wanting the Island. He is warning us against misidentifying it.
This is where I must be honest with myself.
There have been moments—particularly with the start and loss of a recent dating relationship—where I began treating the longing as though it were the destination rather than a reflection of it. As though she were the Island itself, rather than a glimpse of something the Island is pointing toward. And in doing that, I placed a weight on a human relationship that no human relationship can hold.
The Blue Flower
The image of the Island has older roots than Lewis.
German Romanticism gave us something called die blaue Blume—the Blue Flower. It comes from Novalis, an 18th-century poet, in his unfinished novel Heinrich von Ofterdingen. The Blue Flower represented ultimate longing—the unity of beauty, truth, and love. A desire that the world itself could not satisfy.
The Romantics believed the flower could be found within the world, if only we awakened enough to see it.
Lewis accepted the longing. He rejected the conclusion.
He didn't throw out the symbol—he baptized it. He agreed that the longing is real and that no earthly thing satisfies it, and then he drew the obvious conclusion the Romantics couldn't bring themselves to make: if nothing here satisfies it, then the object of the longing must be elsewhere.
Don't mistake the signpost for the country.
That line is not original to Lewis, but I do see that he lived it honestly.
The Chasm You Cannot Cross Alone
Later in The Pilgrim's Regress, John encounters a chasm he cannot cross. John is called crazy by some for even considering crossing the impassable. Mother Kirk is the only one who offers any sign of hope—saying she can carry him across if he would just surrender.
This is only met by ridicule. No one on this side of the canyon regards Mother Kirk as anything more than a crazed old woman.
In all John's efforts, nothing can get him across.
Not insight. Not intensity of longing. Not effort.
Yielding.
John finally succumbs and is seemingly brought across against his will. In other of his books this is what Lewis refers to as being the most reluctant convert. For this, John is not only fiction but a picture of Lewis himself.
In the end, John crosses the chasm not by his own effort but by following what Mother Kirk—or should I say the Church—lays out through sacramental means in which Christ is encountered. Lewis is making a specific point in all of this: you do not get to the True Country by wanting it badly enough. You get there by letting go of the idea that you can get there on your own terms.
This resonates with me and what I am learning about holding earthly longings loosely.
The temptation is to hold the longing for marriage—and a good many other things—so tightly that it becomes its own kind of idol. Or, on the other side, to suppress it so thoroughly that I pretend I don't feel it. Lewis offers a third way.
Feel it fully. Aim it correctly.
These desires we have been given are wonderful windows into something more. No matter what yours is, there is a proper way to aim it.
My Island Right Now
I would say that John's Island was probably more than just marriage. And I too have longings that lay even deeper than that—yet in my current season it is one of the most poignant.
I want to be transparent here, for my sake and yours.
Analyze your longings. What do they really point to?
I want a good marriage. I want to love someone well and be loved in return. I want the particular joy of being known—completely known—and not rejected. And that desire is not wrong.
It is, in fact, true.
But she is not the Island. It is a reflection in the water. And that doesn't make the reflection meaningless—it makes it dangerous if I absolutize it. A reflection absorbed into you is not a reflection anymore. It's drowning.
I am not being asked to kill the longing. I am being asked to aim it correctly.
Christ the True Country
Here is what Lewis ultimately argues—across The Pilgrim's Regress, across his essays, across Surprised by Joy:
Earthly longings are real because they are echoes of heaven. They are painful because they are incomplete. They are holy when they lead us to Christ rather than replace Him.
Marriage is real. Marriage is good. Marriage is a shadow.
And even if it is never fulfilled here—the substance still comes.
That's not consolation. That is not a consolation prize for people who didn't get what they wanted. That is fulfillment. The shadow gives way to the thing that casts it.
Of course, those of you even with healthy marriages may find all this a bit melodramatic. I am sure too that you find marriage itself is by no means a fulfillment. This is as it should be—just go easy on me.
I am learning to hold this tension: that my longing for a holy union is a real longing, pointing to a real thing, and that thing is ultimately not a marriage. It is the union the marriage is always a picture of. The thing every love story is reaching toward, however dimly.
Which means I can want the marriage. And I can release her. And I can trust that the ache itself—this Island, this Blue Flower, this unbearable beauty I keep glimpsing—is not leading me nowhere.
It is leading me home.
"If I find in myself a desire which no experience in this world can satisfy, the most probable explanation is that I was made for another world."
— C.S. Lewis, Mere Christianity
If this resonates with you, I'd love to hear where you are in your own pilgrimage. What longing have you been misidentifying? What Island have you mistaken for the shore?