88. Since there is such a difference between something spiritual and something natural, as shown above in no. 83, therefore not one whit of anything arising from the sun in the natural world can pass over into the spiritual world-not one whit of its light and heat, or one whit of anything existing on the earth. The light of the natural world is darkness there, and its heat is death there. But still the heat of the world can be animated by an influx of the warmth of heaven, and the light of the world can be illumined by an influx of the light of heaven. Influx takes place through correspondent relationships, and cannot take place through a continuum.