A miller is a person who mills.
What does a miller mill?
A miller mills flour.
Well, actually a miller mills wheat berries, and they turn into flour.
I am now a person who does this.
Well, I've done this once.
Details to follow.
(Get it. That's what makes this post a teaser.)
Lesson Learned: Flour comes from wheat berries. Did you know that? Before I became I miller, I did not know that.