Justice is a book 
At times it can be very mysterious  
Maybe even comical 
Do you remember what it felt like to finish your favorite book? 
The warm feeling of everything ending up how it should. 
The feeling of happiness when you know someone got what they deserved. 
Sometimes it even hits you with a wave of sadness like how it is when your favorite character gets in something very bad. 
Anger follows not far behind because it always has to come before the happiness begins. 
Its just a universal feeling that comes with life much like the books we read in our life.