Wind Signs - Gemini, Libra, Aquarius. Air is the element that you cannot touch or see, but it can be mysteriously contained, like blowing up a balloon. When it is contained in this way, it somehow escapes or gets stale. Air people are free and cannot be contained or this same thing will happen to them. Air is uncertain and unpredictable, it can spawn a horrendous thunderstorm with violent winds and the pressure drops and raises by the minute.