When you are interested in learning more about the fundamental aspects of astrology, you should learn about how the celestial bodies of the cosmos interact with and influence each other. Understanding how each planet rules, guides, and influences each individual is necessary to gaining the baseline knowledge necessary to understanding the zodiac. Of course, there are minor celestial bodies as well, which have their own influences. Deeper still, you should learn about the planetary and lunar nodes along with the planetary dignities and how they impact the universe. Read on to learn more about the celestial bodies of astrology.