* Mutable Fire
* Ruler: Jupiter
* Detriment: Mercury
The mutable fire sign of Sagittarius is the most mature but also the most restless and expansive of the fire signs. With Jupiter as its ruling planet, Sagittarius is always seeking the bigger picture, the meaning of life, greater wisdom, more knowledge, more adventures into the unknown and more experiences. It is the journey itself, rather than the goal, which is important for this mutable sign. Sagittarius refuses to be trapped either physically or intellectually, and as soon as, or even before, something threatens to become mundane or routine, they will be off to the next thing, chasing the next horizon which holds fascinating future possibilities for something even more meaningful. As king of the Gods, Jupiter was larger than life, flamboyant, spontaneous, reactive, with an explosive temper, hurling thunderbolts when he was angry. The sheer scale of Sagittarius, its generosity and benevolence, its gales, hurricanes and tornadoes, can be overwhelming, and the explosive temper, quickly spent, can nevertheless leave the more sensitive signs shaken for some time afterwards.
This sign often has a tremendous amount of physical energy and a strong constitution, and physical exercise and sport can be a positive way to work off this energy. Sagittarians have no natural boundaries, which explains why they are often so clumsy, crashing into things and into other people. Fundamentally sociable and gregarious, Sagittarians tend to sweep up other people into their orbit. The more people, the bigger the party, the better. They will always be seeking a more universal or philosophical dimension to life. Their vision is so powerful that, with the self-confidence of all the fire signs, they can even come to believe that they are the arbiters of the one and only truth, which opens them up to accusations of being arrogant, patronising and condescending.
The integration of the opposite sign of Gemini and of the planet Mercury, in its detriment in this sign, can bring a more objective, rational approach and an appreciation of the possibility that truths can be partial and multiple and that other, equally valid opinions and views exist. The integration of Mercury can bring a sense of humour and detachment to what can otherwise become a rather overbearing, evangelical approach to life.
(From astro.com BTW)