the natural world is thick darkness, and its heat is death. Nevertheless,
the heat of the world can be vivified by the influx of heavenly heat, and
the light of the world can be illumined by the influx of heavenly light.
Influx is effected by correspondences; and it cannot be effected by
continuity.

89. OUT OF THE SUN THAT TAKES FORM [existit] FROM THE DIVINE LOVE AND THE
DIVINE WISDOM, HEAT AND LIGHT GO FORTH.

In the spiritual world where angels and spirits are there are heat and
light, just as in the natural world where men are; moreover in like
manner as heat, the heat is felt and the light is seen as light. Still
the heat and light of the spiritual world and of the natural world are
(as said above) so entirely different as to have nothing in common. They
differ one from the other as what is alive differs from what is dead.
The heat of the spiritual world in itself is alive; so is the light; but
the heat of the natural world in itself is dead; so is its light. For
the heat and light of the spiritual world go forth from a sun that is
pure love, while the heat and light of the natural world go forth from
a sun that is pure fire; and love is alive, and the Divine Love is Life
itself; while fire is dead, and solar fire is death itself, and may be
so called because it has nothing whatever of life in it.

90. Since angels are spiritual they can live in no other than spiritual
heat and light, while men can live in no other than natural heat and
light; for what is spiritual accords with what is spiritual, and what is
natural with what is natural. If an angel were to derive the least
particle from natural heat and light he would perish; for it is totally
discordant with his life. As to the interiors of the mind every man is
a spirit. When he dies he withdraws entirely from the world of nature,