What does Gemini rule?

Could you elaborate on the concept of "Gemini" and its potential area of influence or rule? Is it referring to the astrological sign Gemini, a particular organization or entity named Gemini, or perhaps a metaphorical usage? Each of these interpretations could lead to vastly different answers regarding what Gemini rules or governs over. If we're considering the astrological sign, Gemini is often associated with communication, adaptability, and duality. But in terms of a direct "rule" or governance, it's more about the personal characteristics and tendencies associated with those born under this sign, rather than an external authority or power.