The question "Where do broken hearts go?" Has a while lot of meaning to me now. It is not the heart that breaks but the soul. Grief is not fleeting, a person could be a home, and it's scary to leave your comfort zone. 
 If the first book told us something about love pushing boundaries, this book tells us about how love, after making us fly, could break us apart. After the fall, what would the sudden stop would actually feel like?