Castration Complex
By learning to defend consciously against the superego, the individual
is really rejecting, or rather separating from, this identification
with the parent of the same sex, which will ultimately bring out
to consciousness the basis of the identification. Since the identifications
relevant here are with the parent of the same sex, they include
a sexual identification. Dealing with this identification and
the deeper castration complex is tantamount, in the Diamond Approach,
to dealing with a certain specific hole in the personality. This
hole is related to a distortion in self-image, particularly in
the genital part of the body image. The castration complex is
itself the main cause of this distortion; this is true for both
sexes. (Essence, pg 140)

Castration & the Genital Hole
This self-image of an empty dark hole occurs in both men and
women. From one perspective it is a state of castration; from
another, deeper perspective it is experienced as a deficient
and empty state of the self. We will show later that both perspectives
function as a unity, although the perspective of genital castration
surfaces first. The castration perspective is operative in the
process of experiencing space through analyzing the sexual body-image,
because understanding the genital hole leads directly and smoothly
to the experience of space. (The Void)

Superego & Castraton
The superego, then, is seen to be the heir of the castration
fear. So working on the superego, by analysis or otherwise, will
ultimately bring to light the Oedipus complex, and with it the
issue of castration. Dealing with this issue, and particularly
allowing the sense of castration itself to surface into consciousness,
will automatically precipitate the experience of the genital
hole. (The Void)

Castration Anxiety
Castration anxiety is a direct consequence of being cut off
from the Will Essence. The Oedipal situation augments the situation,
but does not create it. For more detailed discussion of this
point refer to our book The Void. It is enough for us here to
mention that the state of castration itself is nothing but the
state of deficiency resulting from the loss of contact with the
Will Essence. (The Pearl Beyond Price)