In "A Very Old Man with Enormous Wings," what is an example of something being both real and magical?

The most
obvious example is the angel itself; human beings do not have wings of any sort, and for a human
to have large wings that eventually prove capable of flight is itself a magical thing. Not even
the most advanced surgical skills could transplant wings onto a human without rejection,
infection, and probably death. The fact of the angel's existence is itself magical because
it...