I think there's more to astrology than a lot of people think. It's not all sun signs and newspaper horoscopes. I've only ever studied natal astrology, which I found to be interesting, but it doesn't really take into account your life experiences since your birth.
There is some interesting evidence of
physical correspondences between the positions of the planets and their earthly counterparts (the metals).
http://borderlandresearch.com/kolisko/Working_With_The_Stars_In_Earthly_Substances.htmlI first came across that during my alchemy studies.