T-Square Study Group

Did you know that your T-square is full of potential?

Whether you’ve noticed how frustrating it can be to use even just one point on the triangle productively without having the other two interfering, or if you don’t know where the pain point is yet, but you know that you have a T-square and want to know how to work with it, this study group is for you!

The study material draws on the concepts of Carl Jung and the widsom traditions of Astrology , and the Enneagram, and others.

“In The Symposium, Plato describes how the gods originally created a perfectly whole, androgynous human being, one who was so self-complete that he/she lacked motivation, and defied the gods’ orders to perform human tasks. As a result, the gods split this being into two selves- male and female- each one now motivated to find the missing half in order to experience completion.

This myth clearly explains the cause of the attraction between the sexes; it is also a fitting metaphor for the incompleteness known to the T-square person, who is forever driven to find the missing piece. Incomplete gestalts act like magnets; the incomplete person draws to herself, as well as attempts to create within herself, the missing part which will help to alleviate the agonizing sense of emptiness, of hanging open, of feeling exposed, or raw and amputated. A person with a T-square may also feel fragmented, as if she has been torn into many parts by forces beyond her control, as a result of some deep-seated deficiency.”

– Tracy Marks, Planetary Aspects: An Astrological Guide to your T-Square

The format will be structured but casual; we will do readings in preparation for each meeting together and work through a 16-page worksheet over the course of the time together (a lot of dialoguing with the planets in your T-square).

Our time online together will involve some learning, then matching it up with our charts, getting more learning, and matching it up with our charts, etc. Then we’ll do some sharing at the end of each session. There is a lot to cover, but this is my first time leading this, so this is my “experiment” to see how the format works.

Over our time together, my goal is for you to identify when the fight between your inner planets in the triangle is happening, and to help you come up with some strategies for getting them working together.

What is the goal of this study group?

Freedom. To help you develop a set of keys for this three-sided “energy trap” and help you lead a more fulfilling, successful, integrated life.

What will you learn?

Week 1: Orientation to your Chart

• Introduction to the Astrological archetypes in your chart, and the planets that form your T-square
• Identifying the competing people, drives, and priorities in your life that these planets represent

Week 2: Orientation to the Enneagram

• Introduction to the Enneagram
• Finding your Enneagram type
• Identifying the bullying message of the apex planet and its false exegency

Week 3: Strategies

• Strategies for integrating our T-square and claiming back our projections
• Introduction to the Law of Three and how it can connect the three disparate parts of us

Over the course of three weeks, you will:

• understand how squares and oppositions work in your chart
• study the ways the T-square shows up in your life and what it prevents you from accomplishing.
• understand how the un-integrated apex planet leaks energy in your life.
• understand how the apex planet wants to be involved in your enjoyment of the planets in the opposition
• get some guidance to find your Enneagram personality type, a powerful self-knowledge tool that will shine a light on your inner life and understand your shadow and development path better.
• develop strategies drawing from astrology, the Enneagram, and other psychological and spiritual principles to help you take back the power you give to the Apex planet, and integrate your own qualities around the apex planet.

Materials for this study group will all be provided by me:

• April 26, 2026: Astrology: Photocopy of Tracy Mark’s Introduction and first three chapters of Tracy Marks’ T-Square book: “What is a T-Square”, “Focal Planets”, and “Focal Signs”
  
• May 3, 2026: (no meeting, but I will meet with each of you individually as available to talk through your chart/T-square and help you identify your Enneagram type. Focus will be tailored to you, depending on where you’re at. NB- I can’t guarantee that we’ll find your Enneagram type- see explanation below.*)
  
• May 10, 2026: The Enneagram: Photocopy of Riso and Hudson’s chapter 1 and 2 of Personality Types: “Understanding Personality Types” and “Origins”, and the type descriptions.
  
• May 17, 2026: Projection: Photocopy of Chapter 1 of Robert A. Johnson’s Inner Gold.

No books are required for this study group, but if something in the material piques your interest, here are some great resources for futher learning.
If you have a T-square, the first book will be VERY helpful to your integrative journey.

– Planetary Aspects: An Astrological Guide to your T-Square by Tracy Marks.

– Astrology: Using the Widsom of the Stars in your Everyday Life by Carole Taylor

– Personality Types: Using the Enneagram for Self-Discovery by Don Riso and Russ Hudson

–The Wisdom of the Enneagram: The Complete Guide to Psychological and Spiritual Growth for the Nine Personality Types by Don Riso and Russ Hudson

– The Complete Enneagram: 27 Paths to Greater Self-Knowledge by Beatrice Chestnut, PhD

–Inner Gold: Understanding Psychological Projection, by Robert A. Johnson

– Owning your Own Shadow: Understanding the Dark Side of the Psyche, by Robert A. Johnson

This study group is for you if you:

• have a T-square and are curious about how your astrological chart lines up with your life experience
• want help navigating the frustration in your T-square
• are on an inner path of self-development (yup, curiosity about your astrological chart counts.)
• are willing to do a little googling/reading/digging on planetary archetypes and your possible Enneagram type to get meaning out of the material
• are able to work through a self-reflection worksheet over the course of our time together and willing to share some of your reflections with the group
• have an internet connection

Who is leading this?

My name is Erin, and I “discovered” Astrology in the mid-2010’s when I was waiting for my cello lesson and reading my horoscope: it said that I would double-book myself that week. Well, I ended up triple-booking myself that week and my antennae went up and said, “Hmm, maybe I should look into this a bit more.” I did casually, but it wasn’t until 2019 when I really became serious about studying Astrology. I learned about the Enneagram in 2010 when I was considering becoming a nun and to this day, I consider it the most brilliant moment of my life when I learned my type, it was so helpful. I had been quite angry growing up and I was lost as an adult, and the Enneagram helped me learn how to nagivate my inner turmoil.

I love both modalities so much and I find they come together beautifully in Jungian thought and mindfulness. Around 2021 or 2022, I started “praying” to Saturn, the apex of my T-square, because he was causing some real difficulties for me in the 10th house and I just didn’t know what else to try. Over the course of a few years, he taught me important pieces about my T-square that proved very helpful. I have since developped a fascination with T-squares in general.

In 2025, I quit my job at a financial firm to do Astrology and Enneagram work full-time. I have a degree in Political Science from the University of Regina in Saskatchewan and a degree in Intercultural Studies from Providence College in Manitoba. I’m currently the secretary-treasurer for the Canadian chapter of the International Enneagram Association. I know I myself will still be learning lots as we dive into our charts, and if you’re interested in gently poking and prodding the planets in your T-square and doing a little surgery to see what psychological material lies beneath the surface, I warmly welcome you to study with me.

How do I know if I have a T-Square?

You can contact me with your date, time, and place of birth and I’ll tell you, or…

1. Generate your chart

Open an account at either astro.com or astro-seek.com. Here are the instructions.

2. Look for a T-Square

Here is how to identify a T-square.

April 26, May 10, and May 17, 2026 at 8:15 PM EST over Zoom.

1.5 hours each meeting

No meeting May 3, but sometime over the course of the month, whenever it works for you, we’ll schedule a free one-on-one T-square unpacking session. It will be casual and tailored to you depending on where you’re at with what you already know vs. what you need help with.

I’m THINKING this will be limited to 10-12 people.

Time Zone Conversion:
5:15 PM PST=
7:15 PM CST=
8:15 PM EST

It’s so great when all the planets feel honored and included in our exercise of the three points on the triangle. That’s the road toward wholeness.

Product

T-Square Study Group – $0 General Astrology Session – $100 Career and Money Reading – $80 Astrocartography Reading – $200 Solar Return Relocation Reading – $75 Inquiry Session (1) – $25 Inquiry Session (3) – $55 Inquiry Session (7) – $126 Inquiry Session (3) Recurring – $50 Inquiry Session (7) Recurring – $116 Inquiry Session (12) Recurring – $192

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*[Sometimes] Difficult but Rewarding: Finding your Enneagram Personality Type

Finding your Enneagram gives a BIG boost to integrating the planets in your astrological chart. When you see yourself wholistically and understand that your disparate, unintegrated planets make sense and you see the internal logic that you’ve been operating on, however flawed, you can have a much greater compassion yourself. When you learn your type, the Enneagram gives you a personalized map of emotional intelligence growth specific to your personality type, which also helps you get more out of your astrology sessions. To find out your type, you can do an Enneagram test. There are lots of “free” versions online that surprise you with a charge at the end, but one of the original and most well-known tests is the RHETI test, and it is USD $20. It takes about 40 minutes to complete. A test can only do so much, though; ultimately, your observation practice of your reactions and mental, instinctual, and emotional patterns will help you find your type more than a test will. To start finding your type for free, you can peruse these short descriptions here or here. The Chestnut-Paes team have a good overview on youtube here.

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Astrological symbols as psychological impulses

“The sun, moon, and planets were the exponents, so to speak, of certain psychological or psychical constituents of the human character; and this is why astrology can give more or less valid information about character… The religious mysteries of later antiquity were all concerned with freeing man from the Heimarmene, in other words, with freeing him from the compulsive quality of the foundations of his own character.”

Carl Jung, Modern Psychology, Vol 5-6, pg. 120

Alchemy

“In the Middle Ages, the work of alchemy was to produce gold from base metals. There were charlatans trying to make actual gold, but the best alchemists were those working with the gold of the spirit.”

Robert A. Johnson, Inner Gold

Owning our Shadow

“Any repair of our fractured world must start with individuals who have the insight and courage to own their own shadow. Nothing “out there” will help if the interior projecting mechanism of humankind is operating strongly. The tendency to see one’s shadow “out there” in one’s neighbor or in another race or culture is the most dangerous aspect of the moden psyche. It has created two devastating wars in this century and threatens the destruction of all the fine achievements of our modern world. We all decry war but collectively we move toward it. It is not the monsters of the world who make such chaos but the collective shadow, to which every one of us has contributed.

Robert A. Johnson, Owning your own Shadow

The planets represent the various “I’s” we identify with

“Planets are enormous beings, and have relations between themselves as people do. They are reactions, tensions. They vary in shape and form, but their revolving in space causes them to appear as spheres. They communicate by emanations- a pure force which does not operate through and by means of matter; and by radiations- which operate through and by means of matter. … In very ancient times, priests, who were then men of understanding, knew how to organize religious ceremonies on a vast scale so as to use the forces of the tension. … We ourselves as individuals are subject to these tensions, we get out of sorts, irritable, rash, and find ourselves doing and saying things that we afterwards regret. How often a person pursues a certain course under the influence of one of his I’s, completely identified, oblivious of everything else; and then, with a start, as it were, he comes to himself, wakes up, and is horrified with the realization of what he has been doing. Examples of this, from the comic and merely irritating to the tragic, are to be seen every day. … This is the result of the influence of the planets….”

Orage’s commentary on George Gurdjieff’s writings.

The Law of Three

“Just as it takes three independent strands of hair to make a braid, so it takes three individual lines of force to make a new arising. This third force serves to bring the other two forces (which would otherwise remain disconnected or deadlocked), into relationship, from which forward momentum can emerge.”

Cynthia Bourgeault, The Holy Trinity and the Law of Three