Where it comes from
In The Ego and Its Own (published at the end of October 1844) Max Stirner told his readers: “Man, your head is haunted; you have wheels in your head!” His ghosts were fixed ideas: God, the state, duty, morality, “the good cause”, things we make and then let rule us. Stirner was a nickname: Stirn is German for forehead, and his was famously high. (Steven Byington’s translation, 1907.)