Mercury is in horoscope the planet which relates to intellect, communication, speech, travel and traffic. It represents children, youth, school and cars. In Greek mythology, Mercury is Hermes the messenger of the gods and it has one foot in the physical world and another in the realm of the unseen. The planet Mercury concerns the mind. He also represents your sign and house position influences the mysterious way you put it all together up there.
Mercury in Taurus brings affinity towards music, art and fun. They are very practical, the spirit of the mind provides them righteous and logical thinking, but may lead them into conservatism and not understanding. They are affectionate towards the opposite sex, and they often fulfill their whims. These persons are very discreet, and have an excellent sense for diplomacy, but they possess a strong urge for gaining material goods and social status.
Mercury in Virgo is in its domicile and provides exceptional intellect, intuition and incredible memory of details usually unnoticed by others. Mercury in Virgo can be a bit high strung when things seem out of control. They are very good at taking care of practical things. They are detail oriented and their friends and coworkers appreciate them. Mercury in Virgo needs a structured learning environment and organized methods of study.
Mercury positioned in Capricorn gives strong, tactical and critical persons, sometimes too suspicious, which may disable them to react in a timely manner with the right response. Their body constitution is extremely durable; they are capable of withstanding unimaginable pain. Mercury in Capricorn tries to understand the world by putting everything into its own little compartment. They may be slow and methodical but they appreciate structure and organization in their life. They just hate chaos.