Eleventh Lecture

When in his daily life man lets the impressions of the senses work upon him, these impressions bring certain fruits for the ordinary life on the physical plane. These impressions pass over into the astral body, which in turn transmits them to the ego. But these impressions are such that man cannot hold them fast when, with his astral body and ego, he slips out of his physical and etheric bodies during the night. What man receives in this way from the physical plane does not penetrate into him so strongly that he can retain it as a permanent impression. But when a person performs the exercises of meditation and concentration, these are so adjusted, in accordance with thousands of years of experience, that the astral body no longer loses the impressions, but retains them when it slips out of the physical body in the night. Through the exercises the astral body receives plastic impressions, which shape and member it as the physical organs have been membered. Thus the astral body is worked on for certain periods through these exercises. Thereby the super-sensible organs of vision are imprinted on the astral body. It would be a long time, however, before man could use his organs of vision if they were imprinted only into his astral body. Something further must take place so that the astral body, when it returns into the etheric body, may stamp upon that body, like the impression of a seal, what has taken shape within itself. Only when what has taken shape in the astral body imprints itself upon the etheric body, only then does the illumination take place that makes it possible for the person to see the spiritual world as he sees the physical world today.