Ego Types

The Enneagram of personality types was derived in great part from Oscar Ichazo's Enneagrams representing fixations, traps, ideas, passions and virtues. The ego types are generally abbreviations of the fixations appended to "Ego-" (e.g., Ego-Resent for the fixation of resentment for ego-type 1).

We call the intellectual part of the ego the fixation, and each fixation is remedied by an idea. Every person develops a style of compensating for the lack, the ontological emptiness, which is at the center of the ego. We say there are nine basic styles or points of ego fixation.
There are certain biological understandings within the body which naturally result in a harmonious emotional life. These are the objective virtues. An essential individual will be in contact with these constantly, simply by living in his body. But the subjective individual, the ego, loses touch with these virtues. Then the personality attempts to compensate by developing passions. The passions which are a product of the mind alone can be seen as the subjective expression of the lack of the objective virtues."
-- Oscar Ichazo

Quote taken from the Sam Keen article, "A Conversation about Ego Destruction with Oscar Ichazo," Psychology Today (July 1973), p.64
The fixations, traps, holy ideas, passions, and virtues listed below for each ego type also come from this article.

To summarize:
"each fixation is remedied by an idea"
"passions...can be seen as the subjective expression of the lack of the objective virtues"

1. Ego-Resent