That which exists in the fifth region may be compared to physical light. In its archetypal form it is wisdom in manifestation. Beings who diffuse wisdom throughout their surroundings, as the sun pours light on physical beings, belong to this realm. Whatever is illuminated by their wisdom stands forth in its true meaning and significance for the spiritual world, just as the colour of a physical object is seen when the light falls upon it. There are still higher regions of the spirit-world, which will be described later in this work. Into this world the ego is plunged after death, together with the results it carries with it out of physical life. And these results are still united with that part of the astral body which is not cast off at the end of the time of purification. In fact, only that part falls away which, in its desires and wishes, turned, after death, toward physical life. The plunging of the ego into the spiritual world, with what it has acquired in the physical world, may be compared to the planting of a grain of seed in the soil in which it can mature. As the grain of seed draws substances and forces from its surroundings in order that it may develop into a new plant, so the condition of the ego, when implanted in the spiritual world, is one of development and growth. Hidden within that which is perceived by an organ, there lies the force whereby that same organ was formed. The eye perceives light; but without light there would be no eye. Creatures spending their lives in darkness do not develop organs of sight. Thus the whole of man’s physical body is created out of the hidden forces of that of which he becomes conscious through his bodily organs. The physical body is built up by the forces of the physical world, the etheric body by those of the life-world, and the astral body is formed out of the astral world. Now when the ego is transferred to the spirit-world it is met by just those forces which remain hidden to physical perception. What appear to man’s view in the first region of the spirit-world are the spiritual beings that are always surrounding him, and that have built up his physical body. Thus in the physical world man perceives nothing but the manifestations of those spiritual forces which have formed his own physical body. After death he is in the very midst of these moulding forces, which, previously hidden, now appear to him in their true forms. In the same way, in the second region, he is in the midst of the forces by which his etheric body was organized, and in the third region there pour in upon him the potencies out of which his astral body was formed. The higher regions of the spirit-world also direct toward him those forces from which he was built in the life between birth and death.