An interstice by definition is “a space that intervenes between things,” “a gap or break in something generally continuous,” or “a short space of time between events” ("interstice." Merriam-Webster, 2022). The “interstice” is symbolic of Whitman’s poem itself, as it represents a short space of time experienced by the speaker. More specifically, this short space of time microscopes in on an intimate moment shared between the speaker and their lover. The poem is also an “interstice” for the reader, as it takes up the short amount of time in the reader’s day to consume it. The “interstice” is representative of the private life that underlies everything that occurs in the public sphere; it is the opening, or the “gap,” through which the private lives of individuals can be observed. As relayed in the first line, it is the “glimpse” that is “through an interstice caught.” This opening, or gap, breaks up the general focus on the communal life of the workers, and shifts the focus to the individual.

The setting of Whitman’s poem is described in the second line. The “workmen and drivers” gather “late of a winter night” (Line 2). Winter often symbolically connects to death, sadness, and solitude in literature.