Along with the harmonic groups, there are also three groups of threes that share similar core motivations or the area where they operate from.
What Comes About
These three manifest in the form of:
- Intelligence center (or head type)
- Gut center (or belly type)
- Feelings center (or heart type)
The head center or "mental triad" consists of Enneagram types 5, 6, and 7. The heart center or "heart triad" consists of Enneagram types 2, 3, and 4. The gut center or the "instinctive triad" consists of Enneagram types 8, 9, and 1.
This means that while a person will always have thinking, feeling and gut instincts, the primary center of a person’s type determines where they will start operating from most of the type.
(e.g. a type 4 individualist will mostly think from his feelings or his heart most of the time)
The head center’s dominant negative fixation is on fear and anxiety. The heart center’s dominant negative fixation is on shame and fear of humiliation.
The gut center typically struggles with anger (whether they are repressed, expressed or suppressed).