Spiritual Enlightenment
In other words, ego development and spiritual enlightenment
are not two disjoint processes but parts of the same process.
The understanding of the Personal Essence shows how they are
linked. This point is a radical departure from the understanding
of both traditional spiritual teachings and modern psychology.
It unifies these two fields into one field, that of human nature
and development. (The Pearl Beyond Price, pg 154)

Two categories of Enneagrams refer to inner experience:
one pertaining to egoic experience (reflecting fundamental spiritual
ignorance), such as the Enneagrams of Fixations and Passions,
and the other pertaining to essential experience (reflecting
spiritual enlightenment), such as the Enneagrams of the Virtues
and the Holy Ideas. (Facets of Unity)

So it is one process of evolution from the beginning
of ego development to the final stages of spiritual enlightenment.
We will explore this evolution as the process of the personalization
of Being. It is how Being, impersonal and eternal, becomes a
person, a human being on earth. So the process is a matter of
Being, which is spirit, learning to live in physical embodiment.
(The Pearl Beyond Price)