I recently came across the following quote... This was in a work of fiction. I'm not sure if the author meant it to be a thought provoking statement or not, but I found it to be so. Considering the existence and persistence of not only astrology but a whole host of other pseudo-sciences I have to wonder, why do they exist? Would humanity have evolved to embrace things like this if it did not serve some purpose? Is it out of the realm of possibility that our ancestors were very aware of the sky, either consciously or unconsciously, and that human physiology has evolved to follow cycles that have the same periods as celestial movements and that therefore there is a correlation between celestial movements and human behavior. An obvious example of this is the correlation between the durations of the lunar cycle and a womans menstrual cycle. Less dramatic correlations might also exist that would only be evident under careful study, or through centuries of random trial and error that evolved into astrology.