Read this line from "the Song of Wandering Aengus" by William Butler Yeats. Because a fire was in my head,

What does "a fire was in my head" mean?

I went out to the hazel wood,
Because a fire was in my head,
And cut and peeled a hazel wand,
And hooked a berry to a thread;
And when white moths were on the wing,
And moth-like stars were flickering out,
I dropped the berry in a stream
And caught a little silver trout.

A.) Aengus's head feels flushed from anger.

B.) It shows Aengus's intense desire to go fishing.

C.) It's an image Aengus has of his head being on fire.

D.) He hears the sound of flames and yearns to flee.