Justice is a card about truth, fairness, objectivity, cause and effect. The card portrays a woman, blindfolded, holding a sword and a scale as a symbol of justice. The blindfold is a key element that stands for the objectivity and fairness. Justice does not care about nuance but facts, and for this, it is a pretty straightforward card.
In terms of love and relationships, it is a YES. However, when asking about a break-up, or better, about a reconciliation, the answer is NO and it indicates that the separation is final. In matters of career and personal projects, it is a YES as long as you deserve it and have put the necessary effort on your end. When it is about finances, it is also a YES. In matters of spirituality, it is a NO and it suggests that it is time to focus on worldly matters, if only for a while.