Obviously astrology has much to offer psychology, but what the latter can offer its elder sister is less evident. So far as I judge, it would seem to me advantageous for astrology to take the existence of psychology into account, above all the psychology of the personality and of the unconscious.
Carl JungThe starry vault of heaven is in truth the open book of cosmic projection, in which are reflected the mythologems, i.e., the archetypes. In this vision astrology and alchemy, the two classical functionaries of the psychology of the collective unconscious, join hands.
Carl JungInstead of being at the mercy of wild beasts, earthquakes, landslides, and inundations, modern man is battered by the elemental forces of his own psyche. This is the World Power that vastly exceeds all other powers on earth. The Age of Enlightenment, which stripped nature and human institutions of gods, overlooked the God of Terror who dwells in the human soul.
Carl JungThere are as many archetypes as there are typical situations in life. Endless repetition has engraved these experiences into our psychic constitution, not in the forms of images filled with content, but at first only as forms without content, representing merely the possibility of a certain type of perception and action.
Carl Jung