Mercury rules Gemini and Virgo. Mercury is the closest planet to the Sun. . Mercury is the planet ruling intellect and intelligence. Mercury is the link between heaven and earth. The mind is the link between the soul and the personality.
Mercury rules the nervous system.
Mercury is neither male nor female but a neutral planet that acts as a mirror to reflect whatever is in its vicinity Mercury represents the soul-consciousness. It represents the mind behind the brain mechanism. When the link is broken the automatic body processes can go on, but the soul has lost its control over its instrument. Mercury channels energy, constructively and destructively. How you use it can change.