The Mutable Quality, or modality, is used to describe the signs that follow the Fixed group of signs. They are the signs through which the Sun passes just before it reaches the four Cardinal points. They are sometimes called "Common Signs" because they show characteristics of both the Fixed and Cardinal signs that surround them on the Zodiac wheel.
Being the signs that end each season and make way for the next, they have a nature that carries the nature of the preceding Fixed Sign, but allows it to transform into the Cardinal energy of the next one. The Mutable Signs are Gemini, Virgo, Sagittarius, and Pisces.
The Mutable Quality, when dominant in a horoscope, often produces people who are a little hard to figure out. They generally are flexible and adaptable, and it's hard to pin them down to a specific point of view; to Mutable people, things are relative.
Mutable people are also resourceful and versatile, and seek variety in life. They are able to adapt things to their needs, and are quick to find opportunities to follow their self-interest. Those whose horoscopes are dominated by the Mutable Quality are usually active and social, and like travel, because it gives them the opportunity to have new experiences and meet new people.
Many Mutable people have a gift of gab and make excellent storytellers, but those who have many "afflictions" in their horoscopes can be manipulative or deceptive. They would rather move away from conflict than to deal with defending a position that they aren't sure of.
They tend to be quite tactful and even diplomatic, and have an amazing ability to get along with people who are vastly different from them in some way. They tend to be likable and entertaining in some way; many performing artists who have to take on different personalities are heavily weighted in the Mutable Quality.
These Modalities, or Qualities, actually describe how the Four Elements operate when the elements and qualities are combined in a Zodiac sign. They are components of the signs themselves, and not individual relationship factors on their own.
Nevertheless, if you're interested in someone who has an abundance of Mutable influence in their horoscopes, you can be sure that you are interested in someone who likes change. If a Mutable person is not seeking change, change will usually find them. Dealing with change may not be your forte, but it is in the midst of the unexpected or unusual where the Mutable person will shine.
Usually, a Mutable person will be quite talkative, and always ready to discuss anything. They are very often quite skilled, and may surprise you with their abilities in music, art or whatever captures your fancy. They are great lovers of personal freedom, but without influences from the Earth Element or the Fixed Quality, they tend to be easily distracted.
Many Mutable people have a difficulty with commitment. It's hard to pin them down to a single place, idea or way of life. At the same time, they are rather adaptable, and if they find a good reason to, will settle down in a secure relationship rather than going through the changes of being satisfied with temporary ones.
In order to understand the meaning of the Mutable Quality better you can read our article on the Mutable Signs or read about the individual signs that have this quality: Gemini, Virgo, Sagittarius, and Pisces.