The Sun and the Moon are termed the "Luminaries" in Astrology. They are the lights and arguably the most important planets. This is a risky statement because every planet is important in regards to a human being living a complete, fulfilled life...any part of us that is cut off or repressed wreaks havoc in our lives.
The Sun and Moon are powerfully central to the personality and emotional nature of the individual, as they are the most visibly obvious bodies in the sky.
THE SUN belongs to the daytime and the conscious nature of the individual. The symbol for the Sun is a perfect circle with a single dot in the middle. The circle signifies completeness - no beginning and no end. It symbolizes Spirit, the ‘masculine’ energy. The dot in the middle represents the divine spark, that tiny piece of God that each of us contain. From that spark we hold the potential to be fully alive enlightened souls.
THE MOON belongs to the night, reflecting the light of the Sun and has to do with deeper, more unconscious realms.
The Sun and Moon are opposites yet partners, as with day/night, masculine/feminine, light/dark, active/receptive, yin/yang. They are different yet vital to one another.
In an individual’s horoscope, the relationship between the Sun and Moon will tell a great deal about how balanced they feel around wants versus needs, exterior versus interior experience and masculine versus feminine nature.