The cube test is an imagination game: you picture a desert, then a cube, a ladder, a horse, a storm and some flowers, and afterwards a key tells you what each image is supposed to say about your life. It comes from Kokology, a popular Japanese book of such games. It is fun and often sparks good conversations, but it is not a scientific personality test, and its readings should be treated as playful prompts rather than findings.
Below you can take the test with the video, then read how it works, where it comes from, and why it can feel surprisingly accurate.

Take the cube test
Before you read any interpretations, try the game properly. Find a quiet minute, answer each step with the first image that comes to mind, and if you like, jot your answers down. The video walks you through it.
The usual steps run like this. Imagine a desert stretching to the horizon. Somewhere in it is a cube: how big is it, what is it made of, and where is it? Then a ladder appears: where is it in relation to the cube? Next comes a horse: what is it doing, and how close is it? A storm then gathers: is it near or far, and is it heading toward the cube? Finally, picture some flowers: how many, and where are they?
What the images are said to represent
Versions shared online vary slightly, but the most common key reads the scene like this:
- The cube stands for you. Its size is linked to self-image, its material to how open or guarded you are, and its position (on the sand, buried, floating) to how grounded you feel.
- The ladder represents friends. A ladder leaning on the cube suggests people you lean on; one lying far away suggests more distance.
- The horse stands for a partner, or the kind of partner you would like. Its colour, calm or wildness and distance from the cube are read as clues about the relationship.
- The storm represents problems and stress. A distant storm suggests troubles you feel are manageable; a storm overhead suggests pressure close by.
- The flowers are often said to represent children, or the things you nurture and hope will grow.
Read these meanings with a light touch. They are interpretations written for entertainment, not rules about your mind.
Where the test comes from: the book Kokology
Kokology was written by Tadahiko Nagao and Isamu Saito, professors associated with Rissho and Waseda universities in Japan. The name comes from kokoro, a Japanese word for mind or heart, and the books were published in Japan in 1998 before an English edition appeared in the United States in 2000. A Japanese television series of similar psychological games aired in the early 1990s.
The book presents itself as a game of self-discovery. Each chapter sets a small imaginary scene and then reveals what your answers “mean”. It was a hit with readers precisely because it is quick, social and a little bit cheeky. Older internet posts sometimes claimed the cube test was “designed by Japanese psychologists” using proven methods. That overstates it: the scenarios have not been validated the way clinical personality tests are, and the authors frame them as play.
Why it can feel so accurate
Many people finish the game convinced it has seen straight through them. Part of the reason is that the scenario is genuinely projective: you choose every detail, so the picture really does reflect your current mood, worries and hopes to some extent. If you are under pressure at work, you may well imagine a storm overhead.
The other part is a well-studied bias called the Barnum effect, or Forer effect. In 1948 the psychologist Bertram Forer gave 39 students a supposedly personal personality profile. Every student received the same text, which he had taken from an astrology book, yet on average they rated it 4.3 out of 5 for accuracy. Later the psychologist Paul Meehl named the effect after the showman P. T. Barnum. Vague, mostly flattering statements feel personal when we believe they were written for us.
Imagination games combine both effects. Your answers are personal, and the readings are general enough to fit almost anyone. That mix makes for a satisfying “aha” moment even when the key could apply to your neighbour too.
Imagination games versus real personality tests
Psychologists who study personality use questionnaires that have been tested on large groups of people, checked for consistency over time, and compared with real behaviour. The best-known example is the Big Five model, which measures openness, conscientiousness, extraversion, agreeableness and neuroticism on scales rather than placing people into neat types.
The cube test does none of that checking. If you took it again next month, you might imagine a glass cube instead of a stone one simply because of a film you watched. That is not a flaw for a party game, but it does mean the results should never be used to judge a partner, a friend or a job candidate.
How to get the most out of it
- Play it with others. Comparing deserts with friends or family is where the real fun lies, and the differences can start honest conversations.
- Use it as a mirror, not a verdict. Ask yourself why you pictured a distant storm or a lonely horse. Your own answer is more useful than the key.
- Do not over-read it. A small cube does not mean low self-esteem. If you are genuinely worried about your mood or relationships, talking to someone you trust or to a doctor is far more helpful than any quiz.
What did your desert look like? Share your cube, horse and storm in the comments and see how they compare with other readers’ scenes.
Sources: Video embedded from YouTube; first shared by Truth Theory; Wikipedia: Kokology; Wikipedia: Barnum effect.
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The "grounded" part of the cube being close to the ground and "storm" being your stress is quite obvious.... Not bad, but the test can be made more subconscious rather than obvious, a lot. Meh~
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