to explain what
correspondence is and the nature of it. This will prepare the way for
what is to follow.

89. First, what correspondence is. The whole natural world
corresponds to the spiritual world, and not merely the natural world
in general, but also every particular of it; and as a consequence
everything in the natural world that springs from the spiritual world
is called a correspondent. It must be understood that the natural
world springs from and has permanent existence from the spiritual
world, precisely like an effect from its effecting cause. All that is
spread out under the sun and that receives heat and light from the
sun is what is called the natural world; and all things that derive
their subsistence therefrom belong to that world. But the spiritual
world is heaven; and all things in the heavens belong to that world.

90. Since man is both a heaven and a world in least form after the
image of the greatest (see above, n. 57), there is in him both a
spiritual and a natural world. The interior things that belong to his
mind, and that have relation to understanding and will, constitute
his spiritual world; while the exterior things that belong to his
body, and that have relation to its senses and activities, constitute
his natural world. Consequently, everything in his natural world
(that is, in his body and its senses and activities), that has its
existence from his spiritual world (that is, from his mind and its
understanding and will) is called a correspondent.

91. From the human face it can be seen what correspondence is. In a
face that has not been taught to dissemble, all the affections of the
mind present themselves to view in a natural form, as in their type.
This is why the face is called the index of the mind; that is, it is
man's spiritual world presented in his natural world. So, too, what
pertains to the understanding is presented in speech, and what
pertains to the will is presented in the movements of the body. So
whatever effects are produced in the body, whether in the face, in
speech, or in bodily movements, are called correspondences.

92. All this shows also what the internal man is and what the
external, namely, that the internal is what is called the spiritual
man, and the external what is called the natural man; also that the
one is distinct from the other as heaven is from the world; also that
all things that take place and come forth in the external or natural
man take p