A psychiatrist named Claudio Naranjo evolved Oscar Ichazo's ego-types into the Enneagram personality types as we use them today. Naranjo largely based the types on Ichazo's passions.
Naranjo outlined the following trait structure for type 9 (Ennea-type IX) in his books Ennea-type Structures and Character and Neurosis.
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Click here to learn more about the nine Enneagram personality types, type variations, type origins, and how the types use the Enneagram symbol.
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