Traditionally, what has been known as the Justice card has to do with moral sensitivity and that which gives rise to empathy, compassion and a sense of fairness. Since the time of Solomon, this image has represented a standard for the humane and fair-minded treatment of other beings.
Often including the image of a fulcrum which helps to balance competing needs against the greater good, and a two-edged sword to symbolize the precision needed to make clear judgments, this card reminds us to be careful to attend to important details. It's a mistake to overlook or minimize anything where this card is concerned. The law of Karma is represented here -- what goes around comes around.
One thing to remember about the Justice card is that it is not about punishment, good, bad, right or wrong. It i's about adjustment. The sword suggests that sometimes this won't be pleasant. Justice pares things down with that sword so that the scales end up equal. The message is to do what's necessary, no matter how hard, how disagreeable, in order to gain, or re-gain equilibrium. It is not a nice card, but in its way, it is a very wise card.