The zodiac is a circle of twelve divisions, each representing a specific segment of the sky where the sun, moon, and planets move. These divisions correspond to twelve astrological signs, such as Aries, Taurus, and Gemini, which are believed to influence personality traits and behaviors based on the time of year a person is born. Each zodiac sign is associated with certain characteristics and elements, such as fire, earth, air, and water. The zodiac is often used in horoscopes, which provide insights and predictions based on the positions of celestial bodies at a given time.