The Essence of Anthroposophy
Once one has recognized through inspiration what goes through birth and death, and what the soul is like outside the body, one has recognized how that which is outside the body connects through conception with that which is given to it through the powers of inheritance. Then one notices, when one can perceive this together, that something else is at work in the soul that is purely spiritual, but which works in our ego. Without this spiritual element, the ego in man would be a completely powerless thing. This spiritual element, which manifests itself when one reaches intuition, is a repetition of earlier earthly lives. Man has gone through earlier earthly lives and lives again and again between death and a new embodiment. And that which, in an earthly life, is active in the ordinary life and ordinary science with the help of the ordinary organism, and which finds its expression through this ordinary organism, passes through the gate of death and through the spiritual worlds. Having passed through the spiritual worlds, having absorbed everything that it had previously only worked and experienced through the body in the world, it enters a new earthly life.