Diamond Dome
The diamond dome is basically direct and objective knowledge
of true nature; hence it is the wisdom of the path of essence.
It demonstrates how each aspect of essence is a particular way
of knowing true nature, and shows how the realization of each
aspect can be a path on its own. In other words, it shows how
the inner journey can be understood, in its totality, in relation
to each of the aspects, and how a path can integrate various aspects
in its conceptualization, or even the totality of all aspects
(Inner Journey Home, pg 244)

Working through the issues of the diamond dome reveals that in
contrast, the ego identity subsists through its inner activity,
based on rejection, hope, and desire. The soul learns that being
her essence is a matter of simply being, and that this essence
is recognized by being it. No activity is needed for the soul
to be herself. This insight brings about the end of the attitude
of seeking that began the inner journey, revealing it as a continuation
of the ego activity. (Inner Journey Home, pg 245)

The diamond dome embodies the wisdom of the necessity of ego
death for the free unfoldment of the soul, and provides knowledge
of how essence works toward this death. It reveals that essence
is inseparable from knowledge, and ushers the student into the
perception that being Being and knowing Being are the same. (Inner
Journey Home)