The Sun represents your conscious identity, while the Moon governs your innermost feelings and subconscious self. The Sun-Moon aspect shows how comfortably these two cooperate.
Conjunction: If your Sun and Moon are conjunct, you were born near a New Moon, carrying all the energy and drive that comes with it. Your conscious will and subconscious instincts are aligned, giving you strong focus, determination, and enthusiasm. This can make you highly driven, but also potentially stubborn or resistant to other viewpoints. There may be a tendency toward a one-sided personality or deeply ingrained patterns that are hard to break.
Harmonious aspects: If your Sun forms a sextile or trine with the Moon, you’re friendly, vibrant, and open to opportunities. You generally feel at ease with yourself and enjoy a well-balanced inner life — a true gift. You likely have a well-integrated personality and adapt easily to others. This often reflects in a harmonious home environment and steady progress or promotions in your career.
Hard aspects:
If your Sun and Moon are square, your conscious self desires one thing, and your subconscious yearns for something else. So you’re never truly satisfied, and you may struggle with a tendency to sabotage yourself. Interestingly, this discomfort turns out to be highly motivating. Legions of accomplished people in every field have this aspect — so many that I’m not even sure it’s a disadvantage.
If your Sun and Moon are in opposition, you were born under a full moon, a time when emotions run high. Restless and conflicted, you find it difficult to match your desires to your abilities. You attract stressful relationships and may overreact to obstacles. Although a few people with Sun-Moon oppositions screw up in astonishing ways (extreme example: Michael Jackson), the opposition also motivates them to conquer the internal divide and become hugely successful.