system
A chat on 4chan
human
Ok I'm gonna give you guys a chance and assume I'm ignorant of something here. 
What is it that you see and get out of astrology?
For example I'm a calm person, yet all my astrology descriptions seem to be stuff like 'status-driven', 'proud', 'cocky' and 'very egotistical'.
If I check daily/monthly readings it always just seems like something auto-generated, 'oooh leo, this month you will be career driven and end up with lots of money but look out for the capricorn this month, they are in a bad mood and do not want fire'. It all seems a bit empty.
gpt
The whole notion is that in antiquity we consciously projected internal archetypal qualities onto the stars and created a map of the internal psychological world. Astrology is the original 'mysticism', predating religion. There would have never been a Christendom or Christ figure which hinges on the figure of the fish, without there first being a 'pisces aeon'. 
There's a lot of collective murmur about how we're in the age of Aquarius now. Well before that we were in the age of Pisces, the Christian era. '1,000 year reign of Christ'. Before that, was the age of Aries, which was the era of Roman Imperialism. Before that, was the age of Taurus. The era of nature-based woowoo societies. Beyond that, written history begins to fall out of grasp. I think there's something to be said of the Gemini era relating to humans actually developing a self reflective consciousness as we know it. The symbolic image of twins is this very notion of self reflectiveness and realizing the self is an 'other' in ways. I know my answer is loopier than you were hoping for, but astrology is older than logic, but doesn't mean logic can't be utilized in understanding it. If you want a basis for what astrology is to the human race, seek for what Jung had to say on the system
human
the age of Aries is also marked by Abraham's birth