Moon Conjunct Sun love Synastry ~ Emotional Blending
The Moon is the most important 'planet' in relationships. The Moon represents deep security needs, and it is difficult to be with with someone who does not offer us what our Moon needs. Positive Moon compatibility will show two people who feel "at home" with one another, and instinctively care for one another. It's like being family. That's why it's the most important planet in synastry. If you want to spend the rest of your life sleeping in the same bed as someone else, you obviously need to feel like family to one another.
Moon Conjunct Sun
This Sun conjunct Moon aspect adds emphasis to the blending of your goals and life purpose with the emotional needs of your partner. This Sun conjunct Moon aspect can be very helpful in a romantic relationship and certainly in a marriage, where your understanding and affinity for each other will be naturally very high. When it's your romantic partners Moon that conjuncts the Sun person, you partner has a much easier time relating to your feelings and needs.