The Knight of Swords, the court card of the identical Warrior Twins, Dioscuri who were, Castor the mortal, and Polydeuces the divine.
Representing the astrological sign of Gemini, and the Mercurial energy of this card is embodied in the Knight of Swords and Mercury is represented by Pegasus, the flying horse, my favourite!. Inspiration, adventure, flexibility, eternally youthful with a quicksilver intelligence, and creating a broader vision of life. Oh it all sounds great until someone gets their heart broken, their eye poked out, or breaks their neck!
Seriously though, there is both positive and negative to be found here in this card, as in the whole Tarot deck. I'd much rather focus on the positive, as I have had years of attuning myself to work on overcoming the negatives, and am still a work in progress, which I think we all are, in one way or another. Progress, not perfection is my daily mantra.
Being a pretty typical Gemini myself, and having had my astrological chart read, I understand this duality in personality, sometimes all too well. I have had to wrestle, and fight with myself much like Castor the horse tamer and Polydeuces the boxer. I certainly identify with Castor being a horse nut myself, and I am a fighter. However, really horses tamed me in many ways, and I have learned to pick my fights these days.