Your Sun sign shows how you shine, but the moon shows how you reflect the world around you. While the Sun reveals your identity and life purpose; the moon represents your instincts and reactions. The moon tells what lies below the surface – your unconscious, your emotions, the things you keep hidden. It is how you express yourself, whether in joy and pleasure, or sadness and fear. Your intuition, as well as your feminine and maternal instincts, lie here. The moon describes what you need to feel secure, how to care for yourself, and how you nurture others. It also divulges the type of relationship you have with your mother and how you parent. It gives a depiction of what you need in a relationship.
If you don’t know your moon sign, there are many websites and apps where you can get your entire zodiac chart for free. I use the AstroMatrix and TimePassages apps. Free charts are also available at http://www.astrograph.com or http://www.astro.com. If you do a general search for free astrology birth chart, you will find more. You will need your date and time of birth, and the location of your birth, for the most accurate birth chart.