Moon in the astrology charts is about your moods, feelings, and emotions. Mercury is how you think, communicate and how you associate and connect. When your natal Moon conjunct the other person’s natal Mercury in the synastry chart it means that your two like to connect at a personal level.
Planet Mercury in Astrology means speech, language, verbal communication. Venus in Astrology is your attraction to beauty. Mercury sextile Venus in the Synastry Chart means that both people share some kind of intellectual relationship, verbal intelligence, the mind is very beautiful, clever and smart.
The planet Mercury in Astrology means communication, speech, thinking and informations. Planet Mars means action, achievements, to do, act and how you accomplish things. With Mercury square Mars in the Synastry Chart it means that the people need to understand each other’s point of views.