Fixation: Melancholy
Never happy with the present, always looking toward a happy future.
Trap: Authenticity
For this person, the really real mate will always be just around the comer of the next hour or day, or year. With such a mate, this person will then be fulfilled and so authentic.
Holy Idea: Holy Origin
Once he realizes that his essence originates from perfect being, then he knows that he is “really real” now, and not sometime in the future.
Passion: Envy
The Ego-Melancholy person, hoping for the perfect mate or situation in order to feel really real and fulfilled, tends to think most others have achieved this and, of course, is envious of their seeming happiness and earthiness.
Virtue: Equanimity
Happiness in the present moment or equanimity will help overcome the envy of the happiness of others.
Theory
The Enneatype 4 character has as their passion Envy, which looks at what others' have and creates a desirous feeling for them, and as their fixation, False-deficiency, which is an existential viewpoint that convinces them that they are inherently less than others, especially for not having what they have. Being situated at the bottom of the Enneagram with E5, this is an especially existential and "over-ontic" character who deliberates every psychological affect in consciousness, so it is based on feelings of lacking. The types at the top fall asleep to their lack, the types at the bottom do the same, but try to compensate for it by trying to overfocus on it. In E4 this becomes an excessively pessimistic character who never seems to have things go right for them.