Triad (Enneagram)
A triad is a grouping of three Enneagram types that share a common dynamic. The best-known split distinguishes three centers: gut (8, 9, 1), heart (2, 3, 4), and head (5, 6, 7), each tied to a structuring emotion of anger, shame, or fear. Riso and Hudson propose other triads, such as the Hornevian groups (assertive, compliant, withdrawn), which cut across the grid differently. These three-by-three readings give the model its depth.
The three centers, the first key
Even before hunting for your exact type, identifying your dominant center simplifies everything: nine portraits become three families. Ask yourself what reacts first in you when a difficulty hits: the body that tenses, the heart that clenches, or the head that races. Helen Palmer makes this the starting point of any exploration of the model.
The other groupings
Riso and Hudson layer other triads over the grid: the Hornevian groups describe how you move toward others (by asserting yourself, by going along, or by withdrawing), and the harmonic groups show how you react when things go wrong. Crossing these readings refines your portrait far more than a single number ever could.
Sources
- , The Wisdom of the Enneagram (1999)
- , The Enneagram: Understanding Yourself and the Others in Your Life (1988)