There is a thing we all know, our zodiac. The thing that makes this really interesting is, this is a ancient way to know more about our selves and others. Yeah yeah, not everybody is the same person based on the zodiac sign, thats because its so much more complex.
When you were born, the sun, the moon and the planets stood in a certain way, giving you different personality traits based on the energy of the zodiac the planets were in. If the sun was in leo when you were born you are leo but if the moon was in the aquarius then you have that character in the moon. The moon is more about our emotional system. Then there is all the other planet, like Venus, Jupiter and Mars, in the precarious zodiac, will give you the energy from the particular character to your person, the planets decide which aspect. and then you can start reading more wrapped in your chart.