... All these preparations clearly show that a human being must perfect himself in the physical world through his magical development in order to be prepared for the higher astral world after death.
Franz BardonIf knowledge and wisdom keep the same pace in development, the adept is enabled to grasp all the laws of the microcosm and the microcosm, not only from the point of view of wisdom, but also from the intellectual side, that is, in a bipolar way, to perceive and utilize them for his own development.
Franz BardonThe sphere ... which is located beyond our physical world is called the earth zone. It is also known as the zone girdling the earth. This zone has varying degrees of density, the so-called sub-planes, into which human beings enter after they leave their physical bodies. This is the astral world that individuals enter into with their astral bodies after their physical death.
Franz Bardon