Every painting in the Kokū deck begins the same way. Black ink, a brush, a sheet of paper, and a single movement of the hand. That practice has a name, and a history that reaches back more than a thousand years.
Sumi-e is the Japanese art of ink painting, and the closest relative of Japanese calligraphy. The two share the same brush, the same ink, the same paper and the same eight strokes, and for most of their history the same people practiced both. If a simple black brushstroke has ever caught you, the kind that suggests a whole mountain or a stem of bamboo with almost nothing on the page, you have already felt what sumi-e does. Here is what it is, how it relates to calligraphy, what you need to make it, how the strokes work, and why it shapes far more than the way the cards look.
What sumi-e is
Sumi-e means, quite literally, ink picture. It grew out of ink painting and calligraphy in China and was carried to Japan around the fourteenth century by Zen Buddhist monks, who made it their own. In Japan the written form became shodō, the way of writing, which is what most people mean by Japanese calligraphy. The painted form became sumi-e. They are two branches of one practice. Everything is done in black ink, thinned with water into a range of grays, on paper or silk. There is no color to reach for and nowhere to hide.
The goal was never to copy a subject exactly. A few strokes of bamboo, a single bird, an open circle: sumi-e tries to catch the spirit of a thing rather than its every detail, and it trusts the viewer to meet it halfway. What is left out matters as much as what is put down. The white of the paper is part of the painting, and changing the tone of the ink from deep black to the palest wash is often the only variation a painter allows.
Everything the hand does stays visible
Ink on paper keeps a record of the hand. How much ink the brush was carrying, how much pressure was applied, the speed of the movement, the moment the brush began to run dry: all of it stays in the finished mark. Once a stroke has been made there is no painting over it, so a tremor or an uneven edge is simply left where it is.
Rather than a flaw to fix, that imperfection becomes the character of the piece. It sits close to the Japanese idea of wabi-sabi, a quiet appreciation for what is uneven, aged, or incomplete. Every painting ends up holding the state of mind it was made in.
The four treasures of Japanese calligraphy
Part of what gives sumi-e its depth is how few, and how considered, the materials are. Japanese calligraphers and painters share the same kit, and they call its four core pieces the four treasures of the study, bunbō shihō.
The brush, fude. A handle of bamboo or wood holding a tuft of animal hair, most often goat, horse, or weasel. The hair matters because it decides how much ink the brush holds and how it gives it back. A thick brush, futofude, is for large forms and bold strokes. A thin one, hosofude, is for fine lines and small detail. Most painters keep both within reach.
The ink, sumi. Traditionally made from soot bound with animal glue, pressed into a solid stick and left to age. The stick form began as a practical answer to travel, since a dry block survives a long journey better than a bottle, but it became the heart of the practice. You can buy sumi ready-bottled today, and there is no shame in it, but grinding your own is part of the ritual.
The ink stone, suzuri. A shallow stone with a well at one end. You add a little water, then grind the ink stick against the stone in slow circles until the ink reaches the depth you want. The slower you go, the darker it gets. Many painters say those few quiet minutes of grinding are where the painting really begins, because the hand settles and the mind arrives.
The paper, washi. Soft, strong Japanese paper, usually made from the fibers of the mulberry tree, kōzo. Ink seeps into washi and blurs gently at the edges, an effect that machine-made papers cannot quite reproduce. Every card in the Kokū deck began as ink on this paper.
The rest of the kit
A few smaller things make the work easier, and each has its own name.
A paperweight, bunchin. A slim bar of metal or stone laid across the top of the sheet so the paper stays still while the brush moves.
An under-sheet, shitajiki. A piece of felt or cloth placed beneath the paper so the ink does not bleed through to the table. Schoolchildren in Japan use a plastic one under their notebooks for the same reason.
A seal, inkan. Painters and calligraphers traditionally carve their own small seal and press it onto finished work in vermilion ink. On a page of black and gray it is usually the only color, a single warm mark that says who was here.
A brush pen, fudepen. A modern shortcut with a bristle tip and its own ink supply. It will not replace the four treasures, but it is a portable way to practice strokes on the train or at a café table, and it is how many people take their first steps.
The eight strokes of Japanese calligraphy
Sumi-e and Japanese calligraphy grew up together, with the same brush, the same ink, and the same movements of the hand, which is why a sumi-e painter learns the strokes the way a calligrapher does. Calligraphy teaches that every character in the Japanese kanji system can be built from eight essential strokes, and that all eight appear in one character: 永, ei, meaning eternity. Learning that single character is the traditional first lesson, a little like a beginner guitarist learning the same handful of chords everyone starts with. The method is called eiji happō, the eight ways of the character ei.
The eight strokes are:
- Soku, the dot.
- Roku, a horizontal stroke.
- Do, a vertical stroke.
- Teki, an upward flick lifting off the end of a horizontal or vertical stroke.
- Saku, a short stroke rising to the right.
- Ryaku, a long sweep falling to the left.
- Taku, a short flick falling to the left.
- Taku, a long stroke falling to the right, pressing down as it ends.
Sit with those eight for a moment and you will start to see them in sumi-e paintings everywhere. A stem of bamboo is a vertical stroke with pressure at each joint. A leaf is a long sweep that thins as the brush lifts. A bird can be two flicks and a dot. The painter is not drawing outlines and filling them in; she is placing strokes she already knows in her hand, and letting the subject appear between them.
Holding the brush, finding your pressure
The brush is held upright, more vertical than a pen, with the fingers loose and the movement coming from the arm and shoulder rather than the wrist. The most useful lesson at the start has nothing to do with copying a picture. It is learning your own limits: how much pressure gives you a thick stroke, how little gives you a thin one, where your angle needs to be, and how the brush answers when you speed up or slow down. Nobody can teach you that from a page. You find it on scrap paper, one stroke at a time, before anything is committed to the sheet that matters.
Calligraphy and painting as a form of meditation
Because a stroke cannot be undone, sumi-e, like calligraphy, asks for complete attention in the moment it is made. There is a reason the practice took root in Zen monasteries. The focus it requires, and the acceptance of whatever the brush leaves behind, is itself a kind of meditation. Many who practice it come to feel the point was never to paint beautifully, but to be fully present while painting.
Sumi-e in the Kokū deck
Every one of the 54 artworks in Kokū Meditations is an original sumi-e painting, made by hand with a calligraphy brush, ink and paper before it ever became a card. The open circle that runs through the deck, the ensō, is one of the most recognizable forms in the tradition, painted in a single fluid brushstroke and left deliberately unclosed. You can read about it in The Ensō, Explained.
Keeping the paintings in sumi-e was a deliberate choice. The qualities that define the practice, the single unrepeatable stroke, the room left for imperfection, the space that is never completely filled, are the same ideas the meditations return to again and again.
You can read more about how the deck came together in The Making of Kokū Meditations.
Slowness, attention, open space
Sumi-e rewards slowness, attention, and a willingness to leave things open. So, in its own quiet way, does a meditation practice. Kokū Meditations brings 54 of these hand-painted ink paintings together with a guided visualization and a mantra for each one.
Fifty-four ink paintings, made by hand.