Emily Dickinson’s speaker feels trapped by a world that demands she be quiet and ordinary — what she calls “Prose.” The memory of being shut in a closet as a little girl, praised for being “still,” becomes a metaphor for every way her liveliness has been squashed. There’s a bubble of rebellion in that repeated “Still!” — if her captors could only glimpse the movement inside her head, they’d see how absurd their control is, like locking up a bird and accusing it of treason. Her mind spins wildly, naturally, and can’t be contained without insult.
Then the poem shifts tone, almost wistfully. She imagines someone — maybe God, maybe her own will — able to free himself as effortlessly as a star shines. He can simply choose and laugh his captivity away. But she ends on a quiet, bitter drop: “No more have I.” That same ease isn’t available to her. The mood mixes sly humor with real ache, an inside joke she’s forced to keep to herself.