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Human Design Chart · Gate 4 of 64

Gate 4, Formulization: the untaught mind, waiting at the Ajna

Gate 4 is the place on Ra Uru Hu's wheel that carries hexagram 4, 蒙 Méng, water under a mountain: a spring that does not yet know its course. Human Design puts it in mid-Leo and in the Ajna centre, the centre it ties to the conceptual mind, with one channel, Logic, up to gate 63.

Which of your planets sits in this gate?

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Gate 4 drawn two ways. On the left, hexagram 4, 蒙 Méng, as six lines from the bottom: broken, whole, broken, broken, broken, whole. Below, the zodiac as a straight strip from 0° Aries to 360°, with the gate marked from 18°52′30″ to 24°30′ Leo. 1 2 3 4 5 6 Gate 4 Hexagram 4, 蒙 Méng Centre Ajna Channel to gate 63 (Head) Ari Tau Gem Can Leo Vir Lib Sco Sag Cap Aqu Pis 0° Aries 360°
Our drawing of gate 4: the hexagram it takes its number from, and its place on the zodiac in Ra Uru Hu's wheel, in Leo. It sits in the Ajna centre.

Facts

Gate
4 of 64; 36 of 64 on the wheel, counting from gate 41
Human Design name
Formulization
Hexagram it borrows
4 蒙 Méng ䷃, The Untaught Mind
On the zodiac
18°52′30″ to 24°30′ Leo
Centre
Ajna
Channel
4-63 Logic
Circuit group
Collective
Opposite gate
49: Principles

Meaning

A spring rises at the foot of a hill and has not yet found which way it will run. That is the picture of the two trigrams, water below and mountain above, and the character 蒙 adds its own sense: covered, dim, not yet clear. The Judgment speaks as the teacher or the oracle itself: "I do not (go and) seek the youthful and inexperienced, but he comes and seeks me", in Legge's English, and it answers the first sincere question and not the same one asked again and again.

Human Design puts gate 4 from 18°52′30″ to 24°30′ Leo, in the Ajna centre, which the system ties to the conceptual mind. Its channel, which the school names Logic, runs up to gate 63 in the Head, the centre the system ties to mental pressure and inspiration. The two gates belong to the Understanding circuit of the Collective group.

The engine names the gate Formulization. Taken with its hexagram, we read it in our own words as the moment of working out: a question has been put, by the doubt at gate 63, and the mind at gate 4 is still a spring at the foot of the hill, finding its course. The tradition's rule about questions fits well here. A formula reached once, carefully, is worth more than many tried in a hurry, and the hexagram treats inexperience as a stage to pass through, not a fault.

Gate 49 is opposite gate 4 on the wheel; its hexagram, the changing of the hide, has every line of this one reversed. The I Ching does not place either hexagram on the zodiac: the wheel is Ra Uru Hu's arrangement, made between 1987 and 1992, and the number is all it takes from the book. Nothing about the gate is fixed in a person; it is a place where a planet may stand at birth.

On the wheel

Gate 4 covers 5°37′30″ of the zodiac, from 18°52′30″ to 24°30′ Leo, the 36th gate counting from gate 41. In 2026 the Sun passes through it from 11 August to 17 August, and within a day of those dates in other years. Each of its six lines covers 56′15″:

  • Line 1: 18°52′30″ to 19°48′45″ Leo
  • Line 2: 19°48′45″ to 20°45′ Leo
  • Line 3: 20°45′ to 21°41′15″ Leo
  • Line 4: 21°41′15″ to 22°37′30″ Leo
  • Line 5: 22°37′30″ to 23°33′45″ Leo
  • Line 6: 23°33′45″ to 24°30′ Leo

In a chart the gate is active when any of the 26 positions falls in it, and the channel Logic is defined only when gate 63 is active too, by either set.

When the Personality Sun is in this gate, the school's table names the cross by the angle of the profile: the Right Angle Cross of Explanation (4/49 | 23/43), the Juxtaposition Cross of Formulization (4/49 | 8/14) or the Left Angle Cross of Revolution (4/49 | 8/14). The four numbers are the Personality Sun and Earth, then the Design Sun and Earth. We give the names only.

Correspondences

Each item with how it stands: “sourced” is in the work cited, “our construction” is EsoTerrier’s own, and “disputed” means the sources disagree.

Hexagram (the I Ching)
4 蒙 Méng ䷃: Water below, Mountain above; Legge (1882) spells it Măng sourced
Wheel position (Ra Uru Hu's wheel)
18°52′30″ to 24°30′ Leo, 138.875° to 144.5° of the tropical zodiac: a modern placing, not the I Ching's sourced
Centre (the system's association)
Ajna: the system ties it to the conceptual mind. A name and an association, not anatomy sourced
Channel and circuit
4-63 Logic, to gate 63 in the Head: Understanding circuit, Collective group sourced
Gate opposite on the wheel
Gate 49, Principles, 180° away; its hexagram has every line of this one flipped sourced
Crosses named from this gate
Right Angle Cross of Explanation (4/49 | 23/43); Juxtaposition Cross of Formulization (4/49 | 8/14); Left Angle Cross of Revolution (4/49 | 8/14) sourced
Gate name
Formulization: the name the engine prints, the same as the Definitive Book's title as the pyhd tables record it. A name, not the hexagram's sourced
Gene Keys (Richard Rudd, 2009)
Key 4, from the same hexagram at the same place on the wheel; our Gene Keys Profile page for it gives our own words sourced
Our reading
A mind not yet taught, held to a question from above: read as the patience to frame an answer properly before it is offered as one. our construction

How the schools read it

The I Ching, in Legge's translation (1882)
“I do not (go and) seek the youthful and inexperienced, but he comes and seeks me.”
Human Design (Ra Uru Hu; the school)
Names the gate Formulization and sets it in the Ajna centre, at one end of the channel Logic. Its descriptions of the gate and its six lines are in Ra Uru Hu's books, in copyright; we do not quote or paraphrase them.
The independent schools
Zeno Dickson and Chaitanyo Taschler, Chetan Parkyn, Karen Curry Parker and later teachers compute the same gate at the same place, and read it in their own words.
EsoTerrier
A mind not yet taught, held to a question from above: read as the patience to frame an answer properly before it is offered as one.

Claims about it

  • Gate 4's place on the zodiac, 18°52′30″ to 24°30′ Leo, is where the I Ching itself puts hexagram 4.

    false

    What the record shows: The wheel is Ra Uru Hu's arrangement: Shao Yong's 11th-century circle of the 64, rotated so that hexagram 41 starts at 2° Aquarius. No Chinese source ties a hexagram to degrees of the zodiac.

  • The Ajna centre, where gate 4 sits, is an organ or gland, and the gate tells something about the body.

    unverified

    What the record shows: The centre's name is a name. The schools' pairing of the centres with organs and glands, taken from the chakra books of the 1920s, has no physiological correspondence that anyone has shown, and we never read a gate or a centre as the body or its health.

  • Gate 4 is one of the 64 codons of the genetic code, so it marks something in a person's genes.

    false

    What the record shows: Both sets have 64 members because both are built from a small alphabet in groups: two kinds of line in six places, four bases in three. Nothing beyond the count matches.

Elsewhere on EsoTerrier

Sources

Primary texts (3)
  1. Lynda Bunnell and Ra Uru Hu, The Definitive Book of Human Design. Carlsbad: HDC Publishing, 2011. In copyright; its gate and cross titles as the pyhd tables cite them by page.
  2. Ra Uru Hu, The Rave I'Ching: written in 1989 by Jovian's account; The Complete Rave I'Ching, CreateSpace, 2011. In copyright; cited, not quoted.
  3. James Legge (trans.), The Yî King, Sacred Books of the East XVI. Oxford: Clarendon Press, 1882. Public domain; quoted briefly and credited. archive.org/details/sacredbooksofchi16conf
Studies and other sources (8)
  1. Jovian Archive, "Human Design Dictionary": the school's definitions, read in full 13 October 2026. jovianarchive.com/pages/human-design-dictionary
  2. Pascal Polleunus, pyhd, Human Design calculations in Python with tables cited to the Definitive Book by page, 2025 (MIT licence). github.com/ppo/pyhd
  3. natalengine 1.6.0, a Human Design calculator in JavaScript, 2024 (MIT licence): the source of our cross-name table. npmjs.com/package/natalengine
  4. Chetan Parkyn, Human Design: Discover the Person You Were Born to Be. London: HarperElement, 2009. Cited, not opened.
  5. Karen Curry (Parker), Understanding Human Design. San Antonio: Hierophant Publishing, 2013. Cited, not opened.
  6. Zeno Dickson with Chaitanyo Taschler, Human Design Revealed. Zen Human Design, 2015. Cited, not opened.
  7. Bonnie Sorsby, "Human Design Gates By Degree". bonniesorsby.com/human-design-gates-by-degree
  8. The Unicode Consortium, Yijing Hexagram Symbols, U+4DC0 to U+4DFF: the 64 glyphs, in the received order. unicode.org/charts/PDF/U4DC0.pdf
Our own research (6)
  1. EsoTerrier, the Human Design validation of 12 October 2026: 445 births against an independent calculation, three open-source engines and three public calculators.
  2. EsoTerrier's Human Design engine (services/humandesign), as audited on 14 October 2026: what we compute and the names we print.
  3. EsoTerrier, I Ching research (2026): the Human Design wheel as Shao Yong's circle, rotated.
  4. EsoTerrier, Gene Keys research of 9 October 2026, with its legal and trade-mark report.
  5. EsoTerrier, the I Ching records for hexagrams 1 to 64 (2026): characters, lines, trigrams and the related hexagrams.
  6. EsoTerrier, the Human Design gate records gate-1 to gate-64 (14 October 2026): each gate's structural facts, and our own summary and reading of it.

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By EsoTerrier. Written with AI assistance from our research and checked against its sources; last revised 20 October 2026. How we write these pages.

First published ; last revised . Corrections: support@esoterrier.com.