Lecture I
Anyone capable of observing the mirror-pictures thrown back in all directions by the Moon would have the whole universe before him in reflection. Only that which is within the Moon, that and that alone remains, if I may so express it, the Moon's secret. It remains hidden, just as what is behind a mirror remains hidden. What is behind the outer surface of the Moon, in the innermost sphere of the Moon, is significant above all in its spiritual aspect.
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