Citadel
The experience of this new dimension of Will is of being supported
in a specific way. One feels one does not need ego defenses, because
one now has the real “defense.” This aspect of Essence
is sometimes specifically experienced as the defense of Essence.
This is one reason why we call this aspect the Citadel. The sense
is of being supported, protected, defended by a Presence that
is as formidable and invulnerable as a citadel. It is the presence
of Essence as the defender of the Truth. (The Pearl Beyond Price,
pg 383)

The Citadel gives one a sense of solidity and support, with no
grandiose ideas. One is clearly aware that it is an essential
Presence, and not a physical or mental power, that it is a support
for Being and not for ego. (The Pearl Beyond Price, pg 383)

So to recapitulate, we need objective perception to see, to understand,
that Essence is the answer, is the fulfillment, is the Ridwhan.
And from that will result the true value of Essence, in yourself,
in others, everywhere. And then, with that understanding and valuing,
there will arise the true discipline, the true protection, for
your Essence and for the essential life. The world we live in
does not support this. People around us do not support this. There
are pressures everywhere against this orientation and when you
do experience Essence, it needs to be protected. You have to find
your own citadel, your own fortress. Your citadel has to do with
the true discipline, is the true discipline. There is an actual
aspect of Essence, which we call the citadel, which is the protection
for who you are and your Essence, so that it will be preserved,
so that it will develop, so that it can be used for others. This
is the right way of living. It has to be there. It’s not
that you’ll experience your Essence and you automatically
get out of the swamps. You have to take action, to live your life
in accordance with the truth, the truth of your Essence, the truth
of who you are, your situation, who you happen to be, what your
limitations are. (Diamond Heart Book 1, pg 129)

As the Citadel is realized, it provides the soul with all the
essential aspects as specific supports for leading a life of truth.
We call it the Citadel because it can manifest as an enormous,
solid presence – like a mighty fortress – that supports
and protects the truth as it manifests in our life. The various
defensive ego functions that have helped us operate without the
ground of our true nature are replaced by this immense and powerful
support of Being itself. The more we learn to bring our awareness
of truth into the functioning of our life, the more we gain access
to the essential grounding, guidance, and protection of the Citadel.
To activate this new dimension, the process of exploration needs
to extend into all areas of our life. We begin to explore our
work, our relationships, and our behavior in terms of whether
they reflect truth or not. This process brings in an integrity,
a self-respect, and a valuing of the truth – all of which
invite the arising of the Citadel dimension. (Spacecruiser Inquiry,
pg 354)

Citadel and guidance
The aspect of the Citadel provides guidance for how to live
one's life according to the Truth of Being. It is referred to
as "objective conscience", for it is like the conscience
of Essence. It gives one support and protection that is present
and available, only when one is living according to the Truth
of Essence. In other words, its presence (realization) is equivalent
to living according to the laws of Being. Realizing this aspect
means many practical things. One must change one's practical life
in a way that supports essential life, rather than impeding it.
One's activities, interests, associations, relationships and so
on, now have to be according to the Truth, in the service of,
and in harmony with, Essence. (The Pearl Beyond Price, pg 384)

Citadel and inadequacy
The realization of the Citadel actualizes the Merging Essence
right at the site of the inadequacy. This then brings about the
Presence of the Personal Essence, along with the heart qualities
and the Diamond Guidance. This resolution is not final, because
it is not complete... Nevertheless, the state becomes much less
intense, less significant, more understood and easily tolerable.
Basically, with this resolution, one attains a much greater measure
of disidentification from the state of inadequacy. (The Pearl
Beyond Price, pg 386)