The Angels talk about the way so many people imitate someone else. Instead of trying new things that are unique, they mimic what someone else has done, or is wearing, or is experiencing.
The Angels call this a human tragedy. With all the millions of people on Earth, instead of doing new things, people are content with the brainwashing of the media and the celebrities who push their ideas, clothing, makeup, and endorsements on the world.
No wonder so many people fail at life.