truths that are from a celestial origin are the goods and truths of love
to the Lord; while those goods and truths that are from a spiritual
origin are the goods and truths of love toward the neighbor. The
difference is like that between higher and lower, or between inner and
outer; thus like that between things that are in a higher or inner
degree, and those that are in a lower or outer degree; and what this
difference is can be seen from what has been said in the work on Heaven
and Hell about the three degrees of the heavens, and thus of the angels
and their intelligence and wisdom (H.H., n. 33, 34, 38, 39, 208, 209,
211, 435). (A.E., n. 1042.)

As the heavens are divided into two kingdoms, namely, into a celestial
kingdom and a spiritual kingdom, so are the hells divided into two
domains opposite to those kingdoms. The domain opposite to the celestial
kingdom is called devilish, and the domain opposite to the spiritual
kingdom is called infernal. These domains are distinguished in the Word
by the names Devil and Satan. There are two domains in the hells,
because the heavens and the hells are opposite to each other; and
opposite must fully correspond to opposite that there may be
equilibrium. For the springing forth and permanence of all things, both
in the natural world and in the spiritual world, depend upon an exact
equilibrium between two activities that are opposite; and when these act
against each other manifestly, they act by forces, but when not
manifestly they act by endeavors (canatus). By means of equilibriums
all things in both worlds are preserved; without this all things would
perish. In the spiritual world the equilibrium is between good from
heaven and evil from hell; and thus between truth from heaven and
falsity from hell. For the Lord arranges unceasingly that all kinds and
species of good and truth in the heavens shall have opposite to them in
the hells evils and falsities of kinds that correspond by opposition;