The episode is named after Dickinson's poem . The poem is often interpreted as a critique of empiricism—the idea that you can't find the "truth" or "music" of a thing by dissecting it. In the context of the show, it mirrors Emily's struggle to be truly "seen" and understood by those around her, especially as she begins to "split" her own life between her private poetry and the public world of Sam Bowles.
: This sequence highlights that Emily and Sue’s connection is rooted in Emily’s poetry. While Emily is currently drawn to Sam's "fame," the show suggests her bond with Sue is more "enduring" because Sue truly understands and is moved by her work. [S2E6] Split the Lark
Dickinson Recap, Season 2 Episode 2: 'Split the Lark' - Vulture The episode is named after Dickinson's poem