89. First, it will be stated what correspondence is. The whole natural world corresponds to the spiritual world, not only the natural world in general but also in every particular. Therefore, whatever in the natural world comes into existence from the spiritual world is said to be in correspondence with it. It must be known that the natural world comes into existence and continues in existence from the spiritual world, precisely like an effect from its effecting cause. By the natural world is meant everything in its whole extent that is under the sun, receiving heat and light from it; and all things that continue in existence therefrom belong to that world. But the spiritual world is heaven, and all things in the heavens belong to that world.