It’s an interesting image, the Enneagram. The hidden message is the solution to π: 3.142857. I have tried to encode the following poem with the same message.

Enneagram

The symbol of esoteric knowledge

Reminds me of a halo ‘round the sun:

Inscribed as a circle, while on its edge,

A triangle and a bent hexagon.

Nine points mark the progress of time,

Gauging our actions and helping us plan

Linear activities: a sublime

Enneagram could be the Face of Man.

One way to approach it is to ask it

For a solution as simple as pie

To a problem, like from which basket

Ate the Knave of Hearts — it will never lie:

Five times out of ten, you’ll get the answer

Seven. Divide that up, if you can, sir!

Sonnet XXI