Understanding what makes two people astrologically compatible can be easier than it might seem. One of the key factors of compatibility in astrology is the use of elements to determine how well you are likely to get along with a person, either in love, friendship or business. There are four elements that correspond to the zodiac signs. These four elements are Fire, Air, Water and Earth. Simply put, you are more likely to have a harmonious relationship with a person of the same element. The next ...