Why has the poet called the grass "convenient" in "A Bird came down the Walk—"?
Emily Dickinson calls the grass convenient because it is right there by the Bird, covered with dew when the Bird needs a drink. On a deeper thematic level, the convenience of the grass is part of the speaker's description of the Bird's complete harmony with nature.
The word "convenience" also functions, however, as a literary device that helps to personify the Bird, as does capitalizing the common noun "bird" as if it is a proper name. Let's look at the couplet in question:
And then he drank a Dew From a convenient Grass—
And then hopped sidewise to the Wall To let a Beetle pass
It is almost as if the Bird is a gentleman at a party, picking up a convenient drink in a glass—the word "grass" causes us to think of glass—and then moving politely aside so that another guest can pass by.
The Bird lives complacently and at ease in its world, never worrying about how to behave. Nature is a convenient and harmonious world for it.
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