There is a question embedded in the premise that I should answer before I say anything else, because it is the question anyone reasonable would ask: why write a letter to someone who will not read it. The answer I have arrived at, after considerable time spent not answering it cleanly, is this — because the absence of a reader is not a deficiency in the exercise. It is the condition that makes the exercise possible. You write differently when no one is coming. You drop things you would otherwise carry. The performance falls away, and what is left is something closer to the truth of what you actually think, which is a rarer thing than most people admit and a harder thing to produce than it sounds.
Most writing is, in some register, a negotiation with an imagined audience. You anticipate how it will land. You soften the edges. You select the version of yourself that is most legible, most sympathetic, most likely to be understood without requiring too much of the reader. This is not dishonesty, exactly — it is the ordinary social contract of communication, the same contract that governs conversation, which nobody faults you for. But it does mean that a great deal of what you write is shaped by the ghost of whoever you imagine reading it, and that ghost has opinions, and those opinions exert a quiet pressure on every sentence you let through.
Remove the reader and the ghost disappears. The pressure lifts. What remains is only the thought itself, and whatever form it wants to take without being managed, and the question of whether you can tolerate what it says when it is no longer being edited for reception.
The letter form specifically — rather than the diary, rather than the essay, rather than the unsent note — does something the others do not. It forces you to name the thing you are addressing. You cannot write a letter to a vague interior state. You have to make the abstraction concrete enough to carry a salutation. Dear Ambition. Dear Midnight. Dear the version of me who did not get what he wanted. The naming is not decorative. It is the first act of understanding. You cannot fully examine a thing you have not yet managed to name, and the letter form insists on the name before it will let you proceed.
A letter always feels to me like Immortality, for is it not the Mind alone without corporeal friend?
— Emily Dickinson, letter to Colonel Higginson, 1869Dickinson spent her life writing letters — thousands of them, to people she rarely saw, in a house she rarely left. She understood something that the form teaches you slowly: the letter is not a substitute for presence. It is a different kind of presence. The mind alone, without the body to distract it, without the face of the other person to perform for, without the real-time negotiation of shared space. The letter is what thought looks like when it is given enough silence and a specific direction to travel in, and told that no one is expecting a reply.
Kafka wrote letters compulsively — to Felice Bauer, to Milena Jesenská, to his father. The letter to his father, forty-five pages, was never delivered. Which is, once you sit with it, not a failure of nerve but the completion of the work. The delivery was never the point. What Kafka needed was to say the thing with the full weight it required, without the violence of making his father sit across from him and receive it. The letter gave him both — the honesty and the mercy. The father never read it. The writing happened anyway. Both of those facts are necessary to the truth of the situation.
There is a philosophical problem underneath all of this that I find more interesting than the practical question of whether letters should be sent. The problem is this: what does it mean to address something that cannot receive the address. When you write to grief, or to a dead person, or to the future, or to yourself at fifteen — you are not under the illusion that these things will read the letter. You know they won't. And yet the act of address is not nothing. Something changes in the writing when you direct it at a specific destination, even an impossible one. The words arrange themselves differently. They carry a different weight. The Dear at the top of the page does something that no other opening can do — it makes the writer responsible to the recipient in a way that outlasts the recipient's existence or accessibility or even reality.
You are accountable to a ghost. And the ghost, being a ghost, cannot release you from the accountability. This is the form's quiet severity. It demands that you mean what you say with a precision that ordinary prose permits you to avoid, because ordinary prose has no one it is trying to reach and therefore no one it can disappoint.
There is also this: writing to the dead keeps them present in a way that is neither delusional nor sentimental. It is simply the refusal to let the conversation end because one party stopped being able to contribute to it. Grief as continued address. The letter as the most honest form of mourning.
What I have found, writing these letters over time, is that the form eventually turns its attention back on you. You begin by addressing something outside yourself and you end by finding out something about the self that was doing the addressing. The letter to ambition becomes a letter about what you are afraid of. The letter to midnight becomes a letter about how you have been spending your interior life. The letter to the person who almost mattered becomes a letter about what mattering actually requires of you. The ostensible subject recedes and the actual subject — which is always, in the end, you, sitting in a room, writing — steps forward.
This is not solipsism. It is just how introspection works when it is honest. All genuine thought about the world eventually curves back through the self, because the self is the only instrument of observation available to you, and you cannot take a reading without also reading the instrument.
The last thing I want to say about this, and the thing I find hardest to say without it collapsing into sentiment, is about the reader who is not there. Because there is always, in the writing of these letters, a faint hope — not that the addressee will read them, which is understood to be impossible, but that someone else will. Some stranger in a room I have not yet imagined, who will find in the letter something they had not found language for, who will recognise the thought before they have finished the sentence in which it appears. This is not a reason to write the letters. But it is not nothing, either. It is the oldest reason there is for putting anything into words at all — the wager that the interior, made exterior, might reach something that needed reaching, across whatever distance and time and silence separates the writing from the reading.
The letter is addressed to no one. It arrives, if it arrives, at someone. These are not contradictions. This is simply what writing does when it is done honestly — it starts by not knowing who it is for and ends by finding out, and the finding out is the work, and the work is the point, and the point, finally, is not the letter at all. It is the mind that wrote it, briefly awake to itself, briefly undefended, briefly exact.
Which is all any sentence ever really asks for. And all, in the end, any of us asks for either.
The letters themselves are elsewhere on this site. This was only the essay about why they exist — which is, perhaps, the most honest letter of all: addressed to the question, written in the full knowledge that the question will not answer back.