Note: this post contains spoilers for the novel Howl’s Moving Castle, which by the way is vastly different from the movie adaptation. If you’ve only seen the movie, reading this will probably confuse you.

Diana Wynne Jones was a genius.
If I were to explain all the ways her genius comes through her writing, I’d be here all day. But I’m going to focus on one thing — her use of the poem Song (by John Donne) in her novel Howl’s Moving Castle.