is it metonymy???

Metonymy In Poetry
Example : We passed the School, where Children strove At Recess, in the Ring We passed the fields of Gazing Grain We passed the Setting Sun Or rather, He passed Us The Dews drew quivering and chill For only Gossamer, my Gown My Tippet, only Tulle We paused before a House that seemed A Swelling of the Ground The Roof was scarcely visible The Cornice in the Ground Since then 'tis Centuries, and yet Feels shorter than the Day I first surmised the Horses' Heads Were toward Eternity - Because I Could Not Stop For Death - Emily Dickinson 
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