Lecture III
The truth underlying the casting of a horoscope is that those who know these things can read the forces which determine a person's physical existence. A certain horoscope is allotted to a person because, within it, those forces find expression which have led him into being. If for example in the horoscope Mars stands over Aries (the Ram), this signifies that certain of the Aries forces are not allowed to pass through Mars, and are weakened. Thus is a man put into his place within physical existence, and it is in accordance with his horoscope that he guides himself before entering upon earthly existence. This subject, which in our times seems so much a thing of chance, should not be touched upon without our attention being called to the fact that nearly everything practised in this connection today is simply dilettantism. It is pure superstition, and for the external world the true science of these matters has been for the most part completely lost. Consequently, the principles expressed here are not to be judged according to that which nowadays frequently leads a questionable existence under the name Astrology.
Cite:
GA 15/l03/p013 · edition ASGB1921