Mercury represents:

•  the intellect
• the need to communicate
• the capacity to think, learn, reason & speak
• the urge to express one’s perceptions and intelligence through skill or speech.
• the need to establish connections with others,
• the need to learn.

Function: Intelligence. Transmission of information; talking, teaching, writing. Reception of information; listening, learning, reading, observing.

Dysfunction: Nervousness, rationalization, worry, flightiness, intellectualism, chattering, inconsistency, hyperactivity.

Mercury rules Gemini and Virgo, is exalted in Virgo, is in detriment and in Sagittarius, and is in detriment and  fall in Pisces.