The seven characters each having one of the seven Horcruxes. Draco with the ring, Ron with the locket, Hermione with the cup, Harry himself, Neville and Nagini, Ginny and the diary and Luna with the diadem.
“When I get lonely these days, I think: So BE lonely. Learn your way around loneliness. Make a map of it. Sit with it, for once in your life. Welcome to the human experience. But never again use another person’s body or emotions as a scratching post for your own unfulfilled yearnings.”