Essential Self
The Essential Self is a central aspect of Essence, distinct from
the Personal Essence. The Personal Essence feels like an individuality,
a person, while the Essential Self feels like an identity, a feeling
of self. The Personal Essence feels like "I am," while
the Essential Self feels like "I." The Personal Essence
has some sense of identity, but not as specific and distinct as
the Essential Self. The sense of beingness, of the "am"
is much more dominant than the sense of identity, the "I,"
while it is the reverse for the Essential Self. The Essential
Self is a very simple and pure sense of Presence. It is so simple
that it becomes subtle and difficult to differentiate from other
feelings. (The Pearl Beyond Price, pg 267)

The experience is not only of pure identity, but of one's own
identity. One does not recognize the self only as identity, but
also as oneself. One realizes that the vague sense of identity
that one has always been aware of or identified with indirectly
is only a reflection, a distant reminder, of this singular and
unique self. One recognizes oneself immediately, as the original
source and prototype of one's usual but vague sense of identity.
(The Pearl Beyond Price, pg 269)

The Essential Self is a clear example of a definite Presence
with no boundaries; this is inconceivable under ordinary circumstances.
Imagine a radiant point of light. It is definite, precise, clearly
differentiated; it is a non-dimensional point. However, because
it is a radiant point of light, it does not have separating boundaries.
It is the source of light, and it is the light itself. The radiant
light goes on forever; it is not bounded by spatial distances.
Now if we imagine the light to be consciousness or awareness,
then we have a very good impression of a definite conscious Presence
that is boundless. One experiences oneself as a brilliant point
of light, consciousness and awareness. Since one is a dimensionless
point, one feels singularly definite, but one has no sense of
boundaries. The Essential Self feels like a concentrated Presence,
a precious and pure Presence of consciousness, with the characteristic
sense of self. (The Pearl Beyond Price, pg 272)

Essential Self and ego
On the other hand, the usual sense of self, the self of ego,
is an emotional content, an affect based on past experience. It
has an emotional coloring that differentiates each person's sense
of self from the other. It is, however, not as clear and definite
as the sense of Essential Self. It is usually somewhat vague and
amorphous, and most individuals do not become truly aware of it
unless they first experience its absence. (The Pearl Beyond Price,
pg 267-268)

Essential Self and self-realization
One needs to know the experience of the essential aspect of
Self. Self or identity is a specific aspect of Being, a Platonic
form, a pure and immutable ontological Presence. When one knows
the true Self, the Self of Essence, it becomes possible to see
and understand the behavior and attitudes that express it. (The
Pearl Beyond Price, pg 265)

Essential Self and wisdom
On the Being level the Essential Self has no limitations, but
the child comes to believe that his body and mind have no limitations,
which is obviously a delusion. The delusion is not the feelings
and attitudes of grandeur and omnipotence, for these are the actual
feelings of the Self of Being. The delusion is in attributing
them to the body-mind. We can see from this that the Essential
Self has no physical-mental wisdom. (The Pearl Beyond Price, pg
278)