People are different, yet so alike.
Everyone is different, but its those certain differences that bring some people together. Each of the individuals represents a different style of living, each individual has darker personality to them afraid to really show it to the rest of the world because no one would understand. But when together, they are colorful, they are happy, yet restrained and afraid to show the rest of the world who they really are, hence, they feel trapped behind a glass door. They alone can understand one another, making their differences from the rest of the world the foundation of their relationship.