Hexagram 4 Méng (蒙): Youthful Folly, meaning and six lines
The fourth hexagram of the I Ching: Mountain above Water, inexperience and learning. Judgment, six lines, changing lines and a cautious reading of Youthful Folly.
Key points
| Number | 4 of 64 (King Wen sequence) |
|---|---|
| Chinese name | 蒙 (Méng) |
| Approximate pronunciation | mung |
| Name (translation tradition followed here) | Meng, Youthful Folly |
| Lower trigram (inner) | Kan, Water |
| Upper trigram (outer) | Gen, Mountain |
| Lines, bottom to top | yin / yang / yin / yin / yin / yang |
| Paired hexagram | No. 3, Zhun, Difficulty at the Beginning |
Hexagram 4: Méng (蒙), name and composition
Hexagram 4 evokes inexperience. The character designates a plant that covers the ground and, by extension, what is still veiled, poorly seen, ignorant. The text applies it to the pupil, the child, anyone who is learning, and to the relationship of teaching.
Hexagram No. 4 is written 蒙 and transcribed Méng in pinyin; it is pronounced roughly “mung”. It is made of two trigrams stacked on top of each other: below, on the inside, Kan (Water); above, on the outside, Gen (Mountain). The overall image is therefore Mountain above Water.
The six lines, from bottom to top, are: yin (broken), yang (solid), yin (broken), yin (broken), yin (broken), yang (solid). In the King Wen sequence it forms a pair with hexagram 3 (Zhun, Difficulty at the Beginning), which is the same figure turned upside down.
The judgment in brief
The judgment is remarkably instructive. It is not the master who runs after the pupil; it is the pupil who comes to ask. The first question receives an answer; if the same thing is asked three times, the request becomes a lack of respect and no answer is given any more. Perseverance is said to be favorable.
General meaning
The Mountain rises above the Water: at the foot of the relief, a spring gushes out without knowing where it is going. It is the image of a mind in formation, full of resources but disoriented. The text argues for an education that respects the learner’s own process: neither abandoning them to themselves nor crushing them. It is not addressed only to children, since everyone is a novice in some field.
The judgment also applies to consulting the I Ching: asking the same question over and over, until an answer one likes is obtained, is exactly what the text advises against.
The six lines, one by one
The lines are counted from bottom to top. Here, summarised in our own words, is the image the ancient text attaches to each one; the last column gives the hexagram obtained if that line alone changes.
| Line | Nature | Image in brief | If it changes |
|---|---|---|---|
| 1 | yin (broken) | Opening a mind sometimes calls for a clear framework and the removal of obstacles; but persisting in severity leads to shame. | No. 41 (Sun) |
| 2 | yang (solid) | Welcoming ignorance with breadth of view is beneficial; the text adds the image of a son able to keep the household. | No. 23 (Bo) |
| 3 | yin (broken) | Beware an attachment in which you lose yourself, dazzled by what glitters: nothing good comes of it. (The exact meaning of this line is debated.) | No. 18 (Gu) |
| 4 | yin (broken) | A prisoner of one’s ignorance, with neither teacher nor practice: regret and distress. | No. 64 (Wei Ji) |
| 5 | yin (broken) | The mind of the child, open and without pretension: a good sign. | No. 59 (Huan) |
| 6 | yang (solid) | Striking at ignorance: firmness serves to ward off a danger, not to become the aggressor oneself. | No. 7 (Shi) |
Changing lines
A changing line is a line that the casting marks as unstable: one reads its own text, then it turns into its opposite, which gives a second hexagram, read as the direction the situation is taking. A changing yang line is called “nine”, a changing yin line “six”. Without any changing line, one keeps to the general judgment.
For Meng, a changing line points to the lesson: a framework set with measure, breadth of mind, wariness of seductions, the solitude of one who learns without a guide, childlike openness, and finally a firmness that stays measured.
A modern reading, with caution
Today, Meng is often read as the hexagram of learning and transmission. A cautious reading sees a double reminder: to the teacher, not to force things; to the pupil, to ask sincerely and not to wait for the same answer over and over. It can also invite us to recognise that we are beginners in a field, and to feel no shame about it.
Questions to reflect on
- In which field am I, right now, a true beginner?
- Have I sought a guide, or am I moving forward alone out of pride?
- Which question do I keep asking, hoping for a different answer?
- How can I give structure without crushing, if I am passing something on?
Mistakes to avoid
- Confusing ignorance with foolishness: the text speaks of potential, not of a defect.
- Asking the same question again and again, which the judgment advises against.
- Answering inexperience with severity, which leads to shame.
- Believing oneself already learned, like the closed mind of the fourth line.
Names, translations and a reminder
The name “Meng, Youthful Folly” follows one translation tradition among others. Other translations speak of Youthful Inexperience, Young Sprout or Ignorance; “youthful folly” stresses the scattered eagerness of youth. Compare two translations if you can.
A reminder: the I Ching is a book of wisdom and divination, consulted as a tool for reflection, never as a prediction; it replaces no medical, legal, financial or safety advice. This page summarises the text in our own words.
Frequently asked questions
What does hexagram 4 of the I Ching mean?
It is the hexagram of inexperience and learning. It describes the relationship between the one who learns and the one who teaches, and the attitudes that help progress.
Why should one not ask the same question three times?
The judgment says that a repeated request becomes a lack of respect. In consulting the I Ching, this invites us to accept a first answer and reflect on it, rather than trying to get around it.
Is Meng a negative hexagram?
No, the judgment announces success. The hexagram speaks of a starting state, that of the learner, which is nothing to be ashamed of.
What are the trigrams of hexagram 4?
Kan (Water) below, on the inside, and Gen (Mountain) above, on the outside.
What is the paired hexagram of number 4?
Number 3, Zhun, Difficulty at the Beginning: in the King Wen sequence, hexagrams go in pairs, the second being the same figure turned upside down.
Also read
The meanings mentioned belong to tradition and symbolism. They are neither promises of results nor medical advice. Back to The 64 hexagrams of the Yi King.