This essay is adapted from the nineteenth chapter of my book Figuring.

In the first autumn of her thirties, Emily Dickinson wrote to her confidante and eventual editor Thomas Wentworth Higginson:

I had a terror — since September — I could tell to none, and so I sing, as the Boy does by the Burying Ground — because I am afraid.

Not a “fright,” not a “shock,” but a terror. What lay behind this enormity implied by a woman who measured her words so meticulously? Generations of biographers have filled pages with conjectures of varying persuasiveness — a death, some unrecorded heartbreak in her volcanic relationship with Susan, the first attack of epilepsy — but the most intriguing theory came nearly a century after the poet encrypted these words.

In 1951, after years of research and travel to various archives, the scholar Rebecca Patterson proposed a wholly novel candidate for the “terror” of 1861: Kate Scott Anthon — a newly widowed young woman Susan had befriended during their studies at the Utica Female Academy and then introduced to Emily, who fell into an intense romantic and possibly physical affair with the enticing newcomer before Kate severed the relationship without explanation, dealing a blow Emily would experience as deathly and furnishing the raw material for much of her mournful poetry.

Their story is a mosaic assembled from various surviving documents, as direct as Emily’s letters and as oblique as the marginalia in Kate’s favorite books.

In the late winter of 1859, Kate descended a sleigh in her fashionable black hat and widow’s veil in front of her former classmate’s home in Amherst. Almost immediately, Susan introduced her to the beloved auburn-haired friend who lived across the hedge in the brick house painted deep red and who had been hearing of her for nearly a decade. When Emily, wrapped in a merino shawl, met the tall, handsome woman with the penetrating dark eyes, musical voice, and lively passion for literature and astronomy, she was instantly entranced.

During the three weeks of Kate’s first stay in Amherst, the two women, both twenty-eight, became inseparable. They took long walks with Emily’s dog, Carlo, read Aurora Leigh aloud to each other, and spent evenings at the piano as Emily improvised — “weird and beautiful melodies, all from her own inspiration,” Kate would remember. As Emily played, Kate towered behind her — “Goliath,” the petite poet would call her.

When Kate left to go home, Emily beckoned her for another visit to Amherst:

I am pleasantly located in the deep sea, but love will row you out, if her hands are strong, and don’t wait till I land, for I’m going ashore on the other side.

Emily’s early letters to Kate pulsate with electricity. Writing weeks after they first met, she tries to disguise with playfulness the push-and-pull of irrepressible, frustrated longing in the code language of botany that was her first poetic tongue:

I never missed a Kate before. . . . Sweet at my door this March night another Candidate — Go Home! We don’t like Katies here! — Stay! My heart votes for you, and what am I indeed to dispute her ballot –? What are your qualifications? Dare you dwell in the East where we dwell? Are you afraid of the Sun? — When you hear the new violet sucking her way among the sods, shall you be resolute?… Will you still come?… Kate gathered in March! It is a small bouquet, dear — but what it lacks in size, it gains in fadelessness, — Many can boast a hollyhock, but few can bear a rose! … So I rise, wearing her — so I sleep, holding, — Sleep at last with her fast in my hand and wake bearing my flower. —

In the late winter of 1860, they spent a night together in Emily’s bedroom — unrecorded, inarticulable, except perhaps in verse:

Her sweet Weight on my Heart a Night
Had scarcely deigned to lie —
When, stirring, for Belief’s delight,
My Bride had slipped away —

If ’twas a Dream — made solid — just
The Heaven to confirm —
Or if Myself were dreamed of Her —
The power to presume —

Several weeks after that momentous night, Emily would channel this precious perishability in a letter to Kate:

Finding is slow, facilities for losing so frequent, in a world like this, I hold with extreme caution. A prudence so astute may seem unnecessary, but plenty moves those most, dear, who have been in want… Were you ever poor? I have been a Beggar.

Whatever took place between them, they never addressed it overtly — it is always impossible to articulate the possibility between two people, but especially in a time and place that confined the possible to such narrow parameters for permissible love. Feeling the impossibility of it all, Emily shuddered with anticipatory loss:

Kate, Distinctly sweet your face stands in its phantom niche — I touch your hand — my cheek your cheek — I stroke your vanished hair, Why did you enter, sister, since you must depart? Had not its heart been torn enough but you must send your shred?… There is a subject, dear, on which we never touch.

Little is known of Kate’s side of the experience. None of her letters to Emily survive. (The poet had instructed her sister that all letters be burned after her death — a request which Lavinia Dickinson promptly obliged before discovering the trove of poems that made her realize her sister’s correspondence might have immense literary value.) But Kate — who signed many of her surviving letters to other correspondents “Thomas” or “Tommy” — did have an unambiguous and lifelong proclivity for romantic attachment to women, culminating later in life with a longtime relationship with a young Englishwoman.

Perhaps at twenty-eight, she was simply not ready to so radically dismantle the superstructure of her life as she knew it. In April 1861, she severed the relationship with Emily. There is no record of what was said, but the devastation was complete and lifelong. Many years later, Emily would write to Higginson:

If ever you lost a friend… you remember you could not begin again because there was no world —

A breathless Death is not so cold as a Death that breathes.

In the immediacy of the loss, she interpolated between hope and despair, as we all do when discomposed by a sudden abandonment. A month after her “terror,” which might just be her painful acceptance that Kate was gone, her friend Samuel Bowles — whose newspaper had printed one of the only four poems published in her lifetime — came to Amherst. She refused to see him. Most of her letters from that period were burned, but Samuel was one of her most intimate friends — it is likely that she had confided in him the intensity of her heartbreak, if not its source. “We tell a Hurt to cool it,” she would write in a poem. Among his own letters is one from that summer to a recipient whose name has been scrubbed — an extraordinary letter of consolation to somebody anguishing with unrequited love, somebody who may well have been Emily:

My dear — :

… You must give if you expect to receive — give happiness, friendship, love, joy, and you will find them floating back to you. Sometimes you will give more than you receive. We all do that in some of our relations, but it is as true a pleasure often to give without return as life can afford us. We must not make bargains with the heart, as we would with the butcher for his meat. Our business is to give what we have to give — what we can get to give. The return we have nothing to do with… One will not give us what we give them — others will more than we can or do give them — and so the accounts will balance themselves. It is so with my loves and friendships — it is so with everybody’s.

Emily was not ready to let go of the love she had given, of the hope that it might one day be returned, though alchemised and transmuted into a different form. She wrote to Kate plaintively:

How many years, I wonder, will sow the moss upon them, before we bind again, a little altered, it may be, elder a little it will be, and yet the same, as suns which shine between our lives and loss, and violets.

That season, she composed her most famous poem — read here by twenty-first-century children who are yet to have their loves and losses, and animated by artist Olga Ptashnik:

“Hope” is the thing with feathers —
That perches in the soul —
And sings the tune without the words —
And never stops — at all —

And sweetest — in the Gale — is heard —
And sore must be the storm —
That could abash the little Bird
That kept so many warm —

I’ve heard it in the chillest land —
And on the strangest Sea —
Yet — never — in Extremity,
It asked a crumb — of me.

“Life is long,” a poet friend said to me recently as I was reckoning with a similar rupture. But life was not long for Emily Dickinson, who died suddenly in her fifties, not a single grey on her auburn hair in the small white casket cradling her body and a posy of violets. Life is a feather borrowed from the swift wing of time. If she had lived longer, perhaps Kate would have returned to spend her remaining days with Emily and not with her English lover, or perhaps they would have met again in perfect disenchantment, in perfect friendship. “If” is the widest word of all, the immense alternate universe in which all of our possible lives live. Hope is what we call the bridge between this universe and that one.