You are not special. You're not a beautiful and unique snowflake. You're the same decaying organic matter as everything else. We're all part of the same compost heap. We're all singing, all dancing crap of the world.

This quote is trying to make the point that we are all the same – we are all made of the same basic substances and our individual differences are insignificant. It suggests that we are all part of the same world or “compost heap,” meaning that everyone’s actions, thoughts, and behavior impact one another. Ultimately, we are all the same when it comes down to it. We are like a single chorus singing and dancing together, despite our differences.