Why Gemini and Aquarius are air signs?

Air signs includes Gemini, Libra and Aquarius. Ancient western philosophers believed that the four elements that constitute natural objects and derive everything are water, fire, earth and wind, and the earth's movement according to the ecliptic is actually the flow and change of the four elements. Therefore, the zodiac 12 can also be divided into water signs, such as cancer, Scorpio and Pisces. Fire signs, such as Aries, Leo and Sagittarius; Earth signs, such as Taurus, Virgo and Capricorn; Air signs, such as Gemini, Libra and Aquarius. Water symbolizes spring and emphasizes emotion; Fire constellation symbolizes summer, emphasizing behavior; The earth sign symbolizes autumn and represents pragmatism and stability; The weather vane symbolizes winter, emphasizing wisdom and communication; Water, fire, earth and wind represent the images of the four seasons. Gemini, Libra and Aquarius in air signs are symbolized by Gemini, Libra and Aquarius respectively. Air signs compares the symbols of other constellations and takes their essential similarity, not their literal meaning. These three symbols have nothing to do with air, but symbolize the meaning extending from the air-flexibility and agility. ★ air signs: Gemini, Libra, Aquarius★ "Air" (called wind image in astrology) is an element that has no form and likes airflow. There are many things related to air and its meaning, such as the air that supports life, or the atmosphere around the earth. Others, such as the "tone" of speech or the "momentum" in songs, dances or compositions, make the world colorful. Air, land and water are indispensable conditions for survival. Mode: state of mind: cold sentiment index: optimistic subjective tendency: objective physical state: flow