Lecture III
The next question that naturally presents itself is: How is it with the mineral world? How is it with so-called lifeless minerals? Have they anything resembling an ego, or some other higher principle? If we observe a stone clairvoyantly we find that in the physical world it has only a physical body; the etheric body of minerals surrounds and envelops this on all sides. Take, for example, a rock crystal; you must imagine this entire form as hollowed out, that it resembles a hollow space, and that only where the physical substance ends does the etheric begin. Just as the upper part of a plant is woven round by the astral, so the mineral is surrounded by the etheric. This etheric is at home in the astral world. Mark this well—we have an etheric that is at home in the astral world.