From a poem of G. M. Hopkins titled "The Shepherd’s brow, fronting forked lightning, owns":
THE SHEPHERD’S brow, fronting forked lightning, owns
The horror and the havoc and the glory
Of it. Angels fall, they are towers, from heaven—a story
Of just, majestical, and giant groans.
What does "towers" mean here? Angels are supposed to be beings with wings. Doesn't seem to make sense.