In my opinion, memories and friendship are fragments. Every second, every minute, every breath you take are fragments. These fragments creates stories when conjoined.
That only make sense for memories. What about friendship? How does it relate to these ‘fragments’?
Imagine that your heart is hollow. (Literally, you’d die but this is the heart that symbolises the place of emotion.) Everyone, you meet, make acquaintance with are giving you fragments to fill up your heart.
Think of it as this: everytime you hurt someone, their fragment will shatter from your heart. Your heart will be incomplete. In real life, a heart with holes will put your life in danger.
Relate it to the the heart created by fragments.
The friends you have are important. Try to never break or end a friendship. You’ll hurt them. And they’ll also hurt you.