Completeness
To be complete means to be thoroughly serene, totally, completely
in repose, so much in repose that pleasure and pain come and go,
but are irrelevant, surface phenomena. To be complete means you
are not interested in things being any particular way. If you're
complete, why would you have an interest in anything? You are
not interested in getting; you're not interested in giving. There
is just no interest. You are not interested in pleasure; you're
not interested in pain. You don't reject or oppose pain if it
comes; you don't even prefer its absence. To be interested means
to move out of your repose; it means you have a need, and therefore
are not complete. The completeness is the absence or end of interest,
in the sense of preference. (Diamond Heart Book 3, pg 89)

Completeness and action
Also, the completeness does not act, see? It remains as you,
your center. Your body and mind move and act, to do what is needed.
As I said, being complete doesn't mean you sit down and vegetate.
(Diamond Heart Book 3, pg 97)

Completeness and Being
Completeness is beyond awareness. It is just Being itself. You're
complete without having to know that you're complete. From that
Being comes awareness; it is the light of Being. Being itself
is beyond mind, beyond knowledge, beyond awareness. If you allow
yourself to be the awareness, you will become the completeness.
(Diamond Heart Book 3, pg 96)

Completeness and the mind
Being complete does not necessarily mean knowing anything. The
completeness is independent of the mind. The mind typically functions
out of a sense of incompleteness. Much of its activity occurs
because you take yourself to be incomplete. Only once in a while
is it needed for conscious, practical functioning, and most of
this happens without our having to think about it. (Diamond Heart
Book 3, pg 91)

Pure presence is a state of completeness. It is a simple and
pure condition that has no excitement, no drama, and makes no
big deal about anything. It is the simplicity of fully being oneself.
It is being, without any movement out of the completeness and
serenity of being. There is no gap in one's identity, one's sense
of oneself; in this condition there is no deficiency, no need,
no want, no desire, and no fear. This completeness is not arrived
at by completing a process or a project: true nature is eternally
complete. (Inner Journey Home, pg 295)

Completeness and brilliancy
When you feel an essential aspect fully, you usually do not
feel that something is missing. For instance, if you are feeling
love fully—the Pink aspect—you are not usually missing
anything else. The aspect is complete in itself. But there is
no sense or specific affect of completeness. There is no feeling
of incompleteness, but there is no feeling of completeness either.
By contrast, with Brilliancy there is a very specific and delineated
experience of being complete. Therefore, from this insight or
wisdom, we recognize that completeness does not happen by putting
things together; it is not a matter of collecting all the perfections
of your Being and combining them. Completeness arises by integrating
the aspect of completeness into your soul. The experience is:
Your presence is completely filled, continuous—with no
interruption all the way through—with the presence of completeness.
Completeness means that you have not moved away from the totality
of yourself in any way; there is no duality whatsoever. You are
completely abiding as your nature. (Essence of Intelligence,
pg 69