X. Stages in Man's Development in the Light of Spiritual Science

Let us begin with birth. We know that-at physical birth only the physical body is fully born. The organs could develop before birth because the embryo is completely protected by the surrounding maternal sheath. Only when this is pushed aside is this body exposed to the physical elements. The ether body is not born yet, even less the astral body; they are still surrounded by an etheric and an astral sheath. These sheaths, visible only to spiritual sight, are not part of a person's own nature, but they envelop and protect him. At the change of teeth in the seventh year when the ether body is born, the etheric sheath is pushed aside as was the maternal body at physical birth. And only at puberty is the astral body born and fully exposed to the influences of the external world.