"The Wind" by James Stephens is centered around personification: the wind "stood up," "gave a shout," "whistled," "Kicked," "thumped," "said he'll kill," has a voice, fingers, legs, and hands. The wind, in addition to acting and speaking and being built like a human, is given gender: the wind is a "he."
The speaker covers usual effects of the wind, giving human motivation to the actions. The wind makes loud noises, which become a shout and a whistle; the wind blows leaves around, which becomes a kick; branches break, here they are thumped; wind kills people, here it's on purpose.
The speaker also gives personality to the wind, which of course it doesn't really possess. In "The Wind," wind is apparently vindictive, and certainly destructive.
The writer gives a perspective of nature different from the usual.