AC 9913 - Aaron's robe, especially the neck

AC 9913
. . . by "the robe" is signified the spiritual kingdom,
and specifically its internal;
and by "the neck,"
where was the mouth of the head of the robe,
is signified the influx, communication, and conjunction
of celestial with spiritual things;
for the head with a person
corresponds to the Lord's celestial kingdom,
and the body to His spiritual kingdom;
consequently the intervening neck,
which is encompassed and clothed
by the mouth of the head of the robe,
corresponds to the mediation or influx
of the celestial kingdom into the spiritual kingdom.

[2] That such things are signified by
"the mouth of the head of the robe in the midst thereof,"
may seem like an absurdity,
especially to those who know nothing of heaven,
and of the spirits and angels there,
consequently nothing of correspondence.
There is a correspondence of all things in a person
with all things in the heavens . . .
in general the head corresponds to celestial things,
the body to spiritual things,
and the feet to natural things.
From this it is plain that by virtue of its correspondence,
the neck signifies the influx, communication, and conjunction
of celestial with spiritual things.
Consequently "the mouth of the head of the robe,"
which was made to encompass the neck,
signifies the method of this influx;
for by Aaron's garments were represented in general
the things that belong to the Lord's spiritual kingdom.
From this it is evident
that by the description of its mouth or circuit
is described the influx itself.
Be it known moreover,
that angels and spirits appear clothed in garments;
and that each of their garments is representative;
as is well known to all who are in the heavens.
It is from this that each of Aaron's garments
also was representative of such things as are in the heavens;
for the Word that is from the Lord
has been so written that there is conjunction by its means.
That the person of the church does not know this,
in spite of his having such a Word,
is because he turns his interiors toward the world,
insomuch that he cannot be raised toward heaven,
and be instructed.