4603. Man was created according to the type of each world - his interiors after the type of the spiritual world, and his exteriors after the type of the natural world - to the end that they might be conjoined in him. Hence it is, that his natural world, or microcosm, cannot continuously live, save by means of an influx from the spiritual world, and that there is, with everyone, a continual endeavor that each of these worlds may be conjoined [with the other] in him.))