Personification "consists in giving the attributes of a human being
to an animal, an object, or a concept"; whereas Apostrophe "consists
in addressing someone absent or dead or something nonhuman as if that
person or thing were present and alive and could reply to what is
being said." (Arp 72-73) The "Flower" and "Frost" in Dickinson's
"Apparently with no surprise" belong to the former, and the star
that begins Keats's "Bright Star" the latter.