The Enneagram symbol: what the circle, triangle and lines mean

People call it the Enneagram wheel, the Enneagram circle or just the diagram, and it shows up on book covers, workshop slides and tattoos. It is three simple shapes laid on top of each other. Once you can see them separately, the whole figure becomes easy to read, and so does what each type's position is supposed to mean.

Three shapes in one figure

Circle

Nine evenly spaced points, numbered clockwise with 9 at the top

Triangle

Joins points 3, 6 and 9

Hexad

An irregular six-sided figure joining 1, 4, 2, 8, 5 and 7, in that order, then back to 1

Lines that cross shapes

None: no line connects the triangle to the hexad

The circle and the numbering

Start with a clock face, then imagine nine marks instead of twelve. The mark at the top is 9, and the numbers run clockwise from 1 at the upper right, down past 4 and 5 at the bottom, and back up to 8 at the upper left. Neighbors on the circle are what personality teachers call wings, so 9 sits between 8 and 1.

Why does 9 sit at the top instead of 0 or 1? In Gurdjieff's scheme as Ouspensky describes it, the top point is where a process both starts and finishes, much as a musical scale begins and ends on the same note. For personality work the placement carries no rank. Nine is not the highest type, and One is not the first in any sense that matters.

The triangle: 3, 6 and 9

The numbers 3, 6 and 9 divide the circle into three equal arcs, so joining them makes an equilateral triangle. In arithmetic terms they are the multiples of three among the digits one to nine: a third is 0.333 repeating, two thirds is 0.666 repeating, and three thirds is the whole. Each of these three points also sits in the middle of one center, with 9 in the middle of the gut types, 3 in the middle of the heart types and 6 in the middle of the head types.

The hexad and the sevenths

The remaining six points are joined in a fixed sequence: 1 to 4, 4 to 2, 2 to 8, 8 to 5, 5 to 7, and 7 back to 1. The sequence is the repeating block of digits in one divided by seven, 0.142857. Two sevenths, three sevenths and so on up to six sevenths all cycle through the same six digits, each starting at a different place, which is why the path closes into a loop and never touches 3, 6 or 9. This is ordinary arithmetic and anyone can check it on a calculator.

From Gurdjieff to personality types

The symbol in its familiar form is first documented through Gurdjieff's teaching in the early twentieth century. He did not attach personality types to the points. That step came with Oscar Ichazo in the late 1960s, who placed nine fixations on the figure, and with Claudio Naranjo, whose type portraits in the 1970s shaped most modern descriptions. Claims that the symbol is thousands of years old are part of the lore around it rather than the documented record.

• A short history of the EnneagramWhere the Enneagram came from: the nine-pointed symbol in Gurdjieff's teaching, the personality system of Ichazo and Naranjo, its spread, and research.
• Where does the Enneagram come from?Where the Enneagram comes from: a nine-pointed symbol, a 1960s system of ego fixations, and the type portraits built in 1970s California. Myths vs records.

How personality teachers read the lines

Once a type sat on each point, the inner lines were given a new job. Most personality teachers read each line as a two-way connection: following the sequence one way shows where a type is said to go under strain, and following it the other way shows where it is said to go when secure or growing. This is the meaning behind versions of the symbol drawn with arrows. A One, for instance, is linked to Four and Seven because the hexad runs 7 to 1 to 4.

• The Enneagram Lines of Stress and Growth (Arrows), ExplainedThe Enneagram lines of stress and growth, also called arrows: the 1-4-2-8-5-7 and 3-6-9 patterns, how teachers use them, and what research actually says.

How to read one type's position

1. Find the number on the circle. Its two neighbors are its possible wings.
2. Check which third of the circle it sits in. That third is its center: top for gut, lower right for heart, lower left for head.
3. Follow its two inner lines. Those are the types tradition links to its stress and growth patterns.
4. Note whether it sits on the triangle or the hexad. Types on the triangle connect only to each other.

Fact, tradition and research: keeping them apart

• Arithmetic fact: the 3-6-9 triangle and the 1-4-2-8-5-7 path follow from dividing by three and by seven. That part is simply true.
• Esoteric tradition: the laws of three and seven, and the idea that the figure maps every process, come from Gurdjieff's teaching as Ouspensky recorded it.
• Personality tradition: a type on each point, wings as neighbors and lines as stress and growth paths are later teaching choices.
• Research: the shapes themselves are not something research can test, but the personality claims laid on them can be, and the results so far are thin.