The novel opens with a sentence so small it feels almost accidental: for a long time I used to go to bed early. Six thousand pages later, we will still be inside that sentence. Proust writes as a man looking back across a life, and the first thing he remembers is not a triumph or a tragedy but the childhood ritual of waiting to be kissed goodnight.

The child is in bed in the house at Combray. Downstairs there is a dinner party. Monsieur Swann, the elegant neighbour, is visiting — and because Swann is visiting, the mother will not come upstairs. She will not perform the small ceremony of the kiss. The child cannot sleep. He waits. He listens for footsteps. He writes a note and sends it down on the cook's tray. He waits more. At last, unable to bear it, he commits a kind of small crime: he intercepts his mother on the stairs.

And here the novel begins in earnest. Because the mother, instead of scolding him, gives in. She stays with him. She reads aloud. It ought to be a victory. Instead the child understands, for the first time, that his mother is capable of weakness — that the world of adult love is not the solid thing he had imagined it to be, and that he has just participated in its compromise.

Proust does not underline this. He does not need to. The whole novel will be about what the child learns on that staircase: that love can be withheld, that it can be extorted, that its retrieval is never as sweet as its arrival would have been. Every later scene of jealousy in the book — Swann and Odette, Marcel and Albertine — is in some sense a reenactment of this first, formative disappointment.

The candle by the bed gutters and goes out. The novel proper has begun.

The narrator is grown now, and depressed, and has come home to his mother on a winter afternoon. She offers him tea and one of the small scalloped cakes called madeleines. He dips a spoonful of cake in a spoonful of tea. He raises it to his lips. And something happens that the rest of the novel will try to explain.

A shudder of pleasure — disproportionate, unaccountable — moves through him. He tastes it again. Less this time. Again. Even less. The pleasure is not in the tea or the cake. The pleasure is somewhere else, somewhere behind them. He cannot locate it. He sets the cup down. He tries to concentrate. He fails. He almost gives up.

And then the whole of Combray rises, as Proust puts it, like a stage set unfolding in a Japanese paper flower dropped into water. The village, the church, the aunt's bedroom, the garden, the narrow streets, the smell of the hawthorn hedge. A childhood he had forgotten was ever his own comes back entire, summoned by a flavour.

This is the novel's first involuntary memory — the central invention of Proust's book, the mechanism the whole thousand-page edifice is built to trigger. Voluntary memory, the intellect's memory, is useless. It gives you only the outline of things, the concierge's version. Involuntary memory is the real one: it comes by accident, through the senses, through a cobblestone or a napkin or a cake, and when it comes it returns the past not as information but as experience.

Proust is not a sentimentalist. He is not saying the past was better. He is saying that it was — that it still is, stored somewhere inside us, reachable by the smallest correct key. And that the task of the artist is to find those keys.

The whole rest of the novel is the work of a man learning to recognize them.

The book pauses here to tell a long story about a man the narrator does not know. Charles Swann — the same Swann whose visit kept the mother on the staircase — falls in love with a woman called Odette. She is not, by the standards of his world, beautiful. She is not even, by those standards, respectable. Swann is a sophisticated man, rich, cultivated, welcome in any salon in Paris. Odette is a cocotte. And yet he loses his mind.

Proust gives us the anatomy of this losing in excruciating slow motion. First there is indifference. Then there is a flicker — Odette is simply absent one evening when Swann expected to see her, and the absence activates something. Then there is a piece of music, a little phrase in a sonata by the composer Vinteuil, which Swann associates with her, which becomes their private sign. Then there is jealousy — the engine of the whole affair, and the deepest of Proust's subjects.

Swann spends his days and nights attempting to determine where Odette is, who she is with, what she has done. The information does not calm him. No information could. What he wants is not to know the truth; what he wants is to stop needing to know. The affair ends, as affairs like this often do, in a marriage of exhaustion.

Proust's diagnosis is merciless and tender at once. Swann's love is not really directed at Odette. It is directed at an idea Swann has manufactured — an idea that needs Odette to be somewhere slightly out of reach in order to remain lit. When he finally has her, he does not love her anymore. He looks up from the wreckage and says the famous sentence: to think that I wasted years of my life on a woman who wasn't even my type.

The rest of the novel will watch Marcel make exactly the same mistake with Albertine. The reader will know — because Swann knew — how it ends.

Before Marcel ever goes to the seaside town of Balbec, he lives there. He lives there in the name. The word Balbec has been spoken to him — by Swann, by the historian Legrandin, by a timetable — and from those mentions he has built a city of private images. Gothic spires eaten by salt. A grey, gale-bitten Atlantic. A church whose stones contain the prayers of Norman sailors.

None of this is accurate. When Marcel finally arrives, the church is in the wrong place. The hotel is modern. The sea is not grim; it is pleasant. The real Balbec is not the imagined Balbec. It cannot be. Nothing we have anticipated long enough ever is.

Proust is fascinated by this gap — the gap between the name and the thing — because he thinks it is one of the structural facts of human life. We live, he says, almost entirely in names. The person we think we love is a name we have given to a set of projections. The place we long to visit is a name. The life we are going to have, when we finally get around to having it, is a name. The actual thing, when it arrives, is always a disappointment and always a gift, because it is never what we ordered and it is therefore a discovery.

All travel literature pretends this isn't true. Proust insists on it. He also insists it doesn't matter. The imagined Balbec is not a mistake to be corrected; it is a layer of the real Balbec, and a Balbec visited by someone who had never heard its name would be a thinner place.

This chapter is where the book's epistemology becomes explicit. The rest of the novel is going to ask, again and again: what is it we are really loving when we love something? And the answer, every time, will turn out to be: the name.

On a sunny afternoon at Balbec, the narrator — now an adolescent — sees a group of young women moving along the promenade. They are bicycling, laughing, unaware of being looked at. They move as a single creature. Proust calls them the little band. Marcel cannot tell them apart. He cannot even quite count them. He falls in love with all of them at once, and then, slowly, with one.

This is how Albertine enters the novel: as a face among faces, a set of cheeks, a laugh, a sunburn, a bicycle. She is not yet a person. The narrator cannot yet know how central she will become — how she will eventually occupy two entire volumes of the book. At Balbec, she is pure possibility, pure young summer. The narrator invents her before he meets her.

What Proust understands, better than almost any novelist before or since, is that we rarely fall in love with an individual. We fall in love with a constellation. The beloved's charm is inseparable from her friends, her setting, the light on the sea, the music of the band in the hotel lobby, the particular summer. Pull any thread and the whole thing unravels.

The little band is the book's first great demonstration of this principle. Albertine will be extracted from it over the course of hundreds of pages, gradually becoming an individual — and as she becomes an individual, she will become less enchanting and more dangerous. The girls in a group are a kind of paradise. The girl as a single person is a problem.

The narrator doesn't know this yet. Neither, for a long time, will the reader.

Marcel spends hundreds of pages trying to be invited to the salon of the Duchesse de Guermantes. Once inside, he spends hundreds more trying to understand why he had wanted to. This is the novel's middle movement: the long, slow, ironic dismantling of glamour.

The Duchesse, from a distance, is a mythological creature — descended from Geneviève de Brabant, owner of a famous name, mistress of a famous hotel. Up close, she is a clever, bored, snobbish woman who is often unkind. Her wit is real but thin. Her husband is stupid. Her guests are provincial in a Parisian way. The salon that had shimmered behind its closed doors turns out, when the doors are opened, to be a rather ordinary dinner party attended by people who also, privately, wish they were somewhere else.

But Proust is not simply debunking high society. What interests him is the machinery of aspiration itself — the way the imagination invests a place with significance, then withdraws that significance the moment the place is attained, and then, fatally, projects the same glow onto the next inaccessible thing.

This is not a vice of snobs. It is the condition of desire. Marcel wants the Guermantes salon; once he is in it, he wants to meet the Prince; once he has met the Prince, he wants to be a guest at an even more exclusive gathering that doesn't actually exist. The wanting is the engine. Fulfilment is the place where the engine briefly stalls before choosing its next direction.

By the end of the volume, Marcel has become fluent in the dialect of this world. His grandmother dies. The salon continues. He discovers that he is a person who can be at a party on the evening after a death, and that nobody present will think this is strange. He records this fact without commentary. It is one of the saddest pages in the book.

The fourth volume opens with one of the oddest set pieces in literary history. Marcel, hidden by accident in a courtyard, watches the Baron de Charlus — the proudest, most martial, most impregnable aristocrat in the Guermantes clan — encounter the tailor Jupien and silently propose himself to him. Proust compares the scene to a botanical curiosity: an orchid, waiting years for the right bee.

With this scene, the novel's secret subject emerges. Charlus is homosexual. He has always been. Proust suggests, with a gentleness that is partly camouflage and partly real, that this is a fact of the human distribution, like a soil type or a weather front. He proposes that a significant portion of the world Marcel has been moving through has been living under what he calls the curse — not the curse of the inclination itself, but the curse of having to hide it.

The section is courageous for 1921, and it is also, in ways the novel has not fully worked out, evasive. Proust's own life shaped these pages more than he ever quite admitted on the page. The prose is alternately clinical, tender, satirical, and — this is where it sometimes falters — too quick to pathologize. Later readers will wince. Later readers will also recognize that no nineteenth-century novelist had done this before, that no twentieth-century novelist did it better for a long time, and that a whole literature of the closet has its door, slightly ajar, in this courtyard.

The unmasking of Charlus is also the unmasking of the book's social world. The salon was never what it appeared. The dukes and duchesses, the generals and the tailors, have all been playing a much more complicated game than the young narrator could see. Everyone is someone else. This is a truth Marcel will eventually apply to himself.

By the fifth volume, Marcel has installed Albertine in his family's apartment in Paris. She is his lover in the shallow, desperate sense that word can have: he does not enjoy her company when she is there, and he cannot bear her absence when she is not. He listens for her footsteps. He monitors her outings. He sends her out with a chaperone and then interrogates the chaperone.

He is, in other words, Swann. The novel has been quietly preparing this echo since volume one, and now it completes it. Swann's love for Odette was the rehearsal; Marcel's love for Albertine is the performance. The reader, who has seen the whole pattern once already, watches in a kind of horrified familiarity as Marcel walks into each of the same rooms Swann walked into.

Proust is interested in a specific paradox: that jealousy is not the other side of love but its generator. As long as Albertine is elsewhere — as long as she might be doing something, seeing someone, remembering someone — she is infinitely interesting. When she is sitting in the drawing room, she is nothing in particular. Love, in Proust's vision, is the mind's attempt to fix the beloved in place. It fails. It always fails. And the failure is the whole content of the emotion.

In the middle of the volume Albertine, at Marcel's request, plays him Vinteuil's Septet on the pianola — an echo of the Vinteuil Sonata that haunted Swann. The music opens, for a moment, onto something larger than their small cruel room. It is a glimpse of what art will eventually offer: a way out of the trap Marcel has built for himself.

He doesn't take it yet. He keeps Albertine.

One morning Françoise brings the narrator a note. Albertine has left. She has fled the apartment, the city, the arrangement. She has gone to stay with her aunt in Touraine. She is not coming back.

And Marcel, who spent months imprisoning her, who was convinced he no longer loved her, is destroyed. The loss activates what the presence had suppressed. He writes frantic letters. He dispatches intermediaries. He plans a rescue. And then — in one of the most famous and most shocking sentences in modern literature, delivered in a single line — another telegram arrives. Albertine has died. She has fallen from a horse in Touraine. She is not coming back in a different sense now.

Proust's account of the weeks that follow is one of the deepest portraits of grief in any language. Marcel grieves not a single Albertine but a series of them — the Albertine of the morning, the Albertine of the beach, the Albertine who lied, the Albertine who might have been faithful. Each must be mourned separately. Each, in its turn, dies again. The work of mourning, he realizes, is not a single labour; it is an entire calendar of small bereavements, each one requiring the mourner to discover something about the dead that will need to be unlearned.

And then, slowly, he begins to forget. Not all at once. Not as a single decision. He notices, one day, that he has gone some hours without thinking of her. He is ashamed. Then he is relieved. Then he is ashamed of being relieved. Forgetting, in Proust, is not the opposite of love; it is love's natural resolution, the proof that the self we loved with is no longer the self we are.

The volume ends with the narrator in Venice. He had promised to take Albertine there. He takes only himself. The canals do their water-music. The pigeons do their pigeon-work. The world has closed over the place Albertine used to be.

Many years have passed. Marcel is older. Albertine is long dead. The war has come and gone. He returns to Paris after a long stay in a sanatorium and goes, without much hope, to an afternoon matinée at the Prince de Guermantes's.

Walking across the courtyard, he trips. His two feet come to rest on two cobblestones of uneven height. And something happens — the same thing that happened with the madeleine, but more severe. A wave of joy, disproportionate and unaccountable, passes through him. He does not yet know what he has remembered. He concentrates. He locates it: the cobblestones he had stood on years before, in Venice, in the Baptistery of San Marco, which had the same uneven height. The past of Venice, the Venice he had taken alone, rises whole inside him.

He goes into the reception. In quick succession three more involuntary memories happen. A footman clinks a spoon against a plate, and he is back in a train stopped in a forest years ago, a railwayman tapping a wheel. He wipes his mouth with a stiff napkin and he is back in Balbec. He opens a book, the Goncourt journal, and the stiffness of its bookmark returns him to another afternoon entirely.

Four memories, in the span of a few minutes. And Marcel understands, finally, what the madeleine had been trying to tell him thirty years and three thousand pages ago.

Involuntary memory does not just return the past. It returns it in a way that cancels time. In those moments, the person who first experienced the sensation and the person now experiencing it become the same person. The self that had seemed to be a succession of strangers — the child at Combray, the adolescent at Balbec, the lover in Paris, the sick man in the sanatorium — are revealed as a single continuous being, accessible through the small door of a sensation.

And this is the material of a book.

Marcel enters the Guermantes reception and does not recognize anyone. They are, he thinks at first, in costume. A man he once knew is wearing a white wig. A woman has put on a false nose. Another has rouged her cheeks strangely. It takes him a long moment — Proust stretches this moment out across dozens of pages — to realize that they are not in costume. They are simply old.

The people he remembers as young are now the elderly people they became while he wasn't watching. The Duchesse de Guermantes has become an old woman with a trembling voice. The Baron de Charlus, once formidable, now salutes the air. The little band of Balbec is represented by a fat matron with a daughter. Everyone Marcel had known is still there, but refracted, displaced, aged into strangers by the decades he had not been counting.

This is the novel's final and cruellest involuntary memory: the sudden, unanesthetized perception of time itself, not as an idea but as a substance that has been doing its quiet work in the bodies of people one hasn't seen. Proust calls it the party of the dead, and it is one of the great set pieces in European literature — a passage that does, in prose, what only Shakespeare had done before, and only in scattered lines.

Marcel is frightened. He is also exhilarated. He understands now that he himself is one of the figures at this party — that to these people, he must look equally strange. He understands that he has been living, for a long time, inside the past, and that the past has been living, equally long, inside him. The only way to hold these two facts together, he realizes, is to build a container for them. A book.

The book, by the time he thinks this, is almost finished. We are reading the last pages of it.

The last pages of the novel are, famously, an announcement that the novel is about to begin. Marcel has understood, in the library of the Prince de Guermantes, what all the involuntary memories had been trying to tell him. Time is not lost. It is stored — in bodies, in cobblestones, in cups of tea, in the small accidents of sensation. And the task of the artist, the only task, is to retrieve it and to give it a form that will outlast the artist.

He decides, standing there among the aged strangers, to write the book we have just read.

This is a famous circular trick. The novel ends by proposing itself. The last sentence of the last volume closes, in a sense, around the first sentence of the first volume — closes around the long evenings at Combray, the mother on the staircase, the candle by the bed. Proust has built a structure that the reader, having reached its end, must re-enter in order to understand. Most books end outside themselves; this one ends by returning us to its beginning.

And the truest thing in these final pages is not the literary architecture but something quieter. Marcel says that he is worried he will not live to finish the work. He will have to write quickly. He will have to work in the small time he has left. Proust himself — dying as he wrote — put those words on the page knowing they were about him, knowing he was racing a clock that was going to win.

The clock won. The novel, by a different definition, won too. You are reading its summary in the twenty-first century because the man who wrote it used up his life in order to catch a life before it dissolved. This is not a small thing. It is not even, in the end, a sad thing. It is the book holding open a small door, and the reader, every time, deciding whether to walk through.