A Gemini rising means that Gemini was the sign that was on the eastern horizon at the time of your birth. As a Gemini rising, you are ruled by air, and your ruling planet is Mercury, the planet of technology, intelligence, and communication. Gemini Rising Sign Explore How It Uses Gemini is the first of the four mutable signs of the zodiac All of which hold a primal energy of change and adaptation at the transitional end of the four seasons. The airy and changeable appearance of gems appears to set the stage for the next seasonal display and helps illustrate these signs' restless, change-seeking and inquisitive role in the zodiac.