Fireworks

Drake is telling how he became famous and his feelings about it.  He was explaining how with money and fame comes a whole new life.  New people come and go along with real things and fake things and also people/things trying to knock you down.  But he isn't letting anything get in the way of his success.  If I look a little deeper into the song though, I can also see that he is explaining the fact that even though he is successful, it gets lonely sometimes being on the top of everything with the fame, money, and all.  Because of the fact that people always come and go while he is steadily moving to the top to follow his dreams, all he have let are the good memories of the people who he wish would have stayed with him.  He likes the fame and all he wouldn't change his life, but he just misses some of the people that were there for him in the beginning.  All of the stories that he tell in his verses are about people he miss and them or him being lonely, so that is where I got this idea.