13. Concerning the Lost Temple and How it is to be Restored III (In connection with the Legend of the True Cross, or Golden Legend)
The very being of the world springs out of living thought; not from dead matter. What outward matter is, is a consequence of living thought, just as ice is a consequence of water; the material world is, as it were, frozen thoughts. We must dissolve it back again into its higher elements, because we grasp life in thought. If we are able to lead the mineral up into life, if we transform [it into] the thoughts of the whole of human nature, then we will have succeeded, our science will have become a science of the living and not of dead matter. We shall raise thereby the lowest principle [of man]—at first in our understanding, and later also in reality—into the next sphere. And thus we shall raise each member of man's nature—the etheric and the astral included—one stage higher.