Every fourth sign is the same Element. There are four Elementgroups: Fire, Earth, Air, and Water. Close observation of the Elements will show you that each Element is made up of one Cardinal sign, one Fixed sign, and one Mutable sign. The Fire and Air signs make up the Masculine signs and the Earth and Watersigns make up the Feminine signs.
This is the most popular way to group the signs. Most people that get into astrology quickly learn this grouping. This is either because of the easy to remember names or the fact that you are most compatible with people in the same element as you.
Unlike people of the same Quality, the similarities and differences complement each other with people of the same Element. An example of a complementing difference would be the Cardinalsign in the Element enjoying attention while the Mutable sign enjoys being attentive. The similarities are also complementing. People in the same Element tend to have the same family values and share the same views on financial matters.
People in the same Element seem to have “Chemistry” with each other. They have a natural attraction towards each other and feel very comfortable with each other. Their communications seem to just flow. This ease of communication and all of the complementing traits make people of the same Element great friends and lovers. This is the best category for relationships.
The personalities of the Elements are more difficult to notice than those of the Qualities. I’ll give you some guidance on what to look for, but I would rather that you concentrated on how well people in the same Element get along with each other. People can be friends with people of any sign, but friends of the same Elementwill appear more comfortable with each other.