The right-handed twin lives in the Sky-World and he is content with the world he helped to create. The left-handed twin lives in
the world below. He, too, is content with the world of men. He delights in the sounds of warfare and suffering. These two beings rule the world and look after the affairs of men. During the day people have rituals to honor the right-handed twin. At night they dance and sing for the left-handed twin. According to this excerpt, the two brothers represent
The text says that the right-handed twin lives in the sky-world. Only what is good can live in the sky so we can conclude that the right-handed twin represents the good and the good things that are present in the world.
Soon after, the text informs that the left-handed twin delights with the sounds of war and suffering. Only a cruel and sickly person would delight in something so bad in humanity, and this shows that the left-handed twin represents evil.
The text passes the information that the two twins complete themselves in ruling the world and taking care of the affairs of men. This shows the balance between good and evil in the universe.
It is somehow related because Sad Perfect is a book about a girl who has an eating disorder, as you know this is not an easy thing to deal with so it would not be uncommon to hate your life. It's not a quote from the book but it can relate.
