More specifically, air and fire signs of matching modalities (cardinal, fixed, or mutable) blend best. Some of these pairings might seem really different, and in many ways, they are! They’re “complementary” because their differences bring out each other’s strengths. When thinking about compatibility, consider how elements interact with each other in nature. Air nourishes fire, has a neutral reaction with water, and is the polar opposite of earth. Pairings of polar opposite elements are complicated. At first, their differences might be exciting to each other, but over time, they can lead to serious disagreements, often making them the least compatible elements.
Compatibility between moon signs and their elements is especially significant when it comes to evaluating emotional commitment in long-term relationships. How the signs relate to each other is the same for moon signs as they are with sun signs. For example, air moons and fire moons tend to get along on a deep level.
