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Its a style figure.
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I believe this is the same figure of speech perhaps better known to English speakers as hendiadys [hen-DEE-a-dis]. Loosely translated from the Greek it means 'one out of two'. It is also called "the figure of twins". Typically, hendiadys takes a noun-adjective combination like 'furious sound', and changes it into two nouns connected with a conjunction. Shakespeare says 'sound and fury' as a striking hendiadic form of the mundane sounding 'furious sound'.
See link to hendiadys for more. Included is a link to hendiadyoin, but that link has the poorest English I've ever seen on-line. It may be a page that was translated to English by way of an automated translator from what appears to be the original German. The translator needs some work.
