mystery trend

We don't know what it is. What is it? I don't know. Do you? What a mystery! Why a mystery? Why a trend? What a trend? How is a mystery a trend? Is the trend a mystery? Is it actually a mystery trend? Is it playing with us? Are they playing with us? Are we playing ourselves? Are we creating the mystery? I don't know. Do you?

Q: Why is the "mystery trend" never mentioned in Julian Cope's song "The Mystery Trend"?

A: The mystery train is on its way.