Most of us have stood in front of a mirror and felt, for a moment, like a different size from the one we actually are. Kay Sage's "Some Day" takes that odd, private sensation and stretches it into something much larger: a way of thinking about ambition, perspective, and the nerve it takes to go and see what lies beyond the edge of your world.
The poem moves in three stages. In the first, the speaker sees herself "taller than I really am" and looks at her reflection "in admiration." The next line is where things turn strange: "Other times I am taller / than myself in the mirror." Now the speaker is not merely admiring a taller image of herself; she herself is taller than the reflection. The mirror, which is supposed to tell the truth, has become unreliable, and the gap between who she is and who she might become opens up. The second stanza then widens the view from the self to the whole landscape. Distant trees and houses shrink into "toys that I could touch / with my hand," and people become "little things / that I could crush / with one finger." The final stanza turns all of these moods into a plan.
The shift in scale is the poem's main engine. Everything depends on size, and size here is a matter of how the speaker feels. When she looks closely at her own enlarged reflection, she is full of self-regard; when she looks outward, the world turns miniature, almost within her grasp. That crushing image is faintly unsettling. It is said lightly, but it carries a flicker of power that is not entirely kind. The poem seems to understand that feeling enormous can slide into feeling indifferent, and it lets that shadow sit quietly in the lines without commenting on it.
Then comes the image the poem is built around: "Sometimes I see the sea as a wall; / the fishing boats are pasted / onto the side of the blue wall / in a most curious manner." This is a striking piece of visual thinking. The sea, which we normally read as flat and spreading outward, is tipped upright, so that the horizon becomes a barrier and the boats look like cut-outs stuck to a surface. The word "pasted" makes the scene feel like a collage or a child's picture, flat and slightly unreal, and the calm, almost polite phrase "in a most curious manner" gives the speaker the tone of someone observing something wonderful without being alarmed by it. The poem never explains the wall, and that is what lets it work: a horizon you cannot cross is exactly what a wall is.
The ending ties everything together through repetition. The conditions of the last stanza echo the earlier ones almost word for word: being "taller / than myself in the mirror," having touched "small trees and houses / with my hand," having crushed "little people / with one finger." What were passing impressions have become tasks to be completed, a kind of checklist for growing up or growing large. Only after them will she "climb to the top of this blue wall / to see what is on the other side." The poem ends on that climb, before we learn what she finds, and the unanswered question is the point. The poem is about wanting, not arriving.
Formally, the poem is plain. It is in free verse, with no rhyme scheme and no steady metre, and the short lines read like a quiet, level voice. The repeated "Sometimes" gives the opening a drifting, dreamlike rhythm, which makes the firm "Some day" of the final stanza land with more weight. The title does real work here: it promises a future, and the whole poem is spent preparing for it.
What makes "Some Day" memorable is how much it does with so little. It uses the simplest vocabulary to capture a very recognisable feeling, that the world is bigger than we are and that growing into it requires first imagining ourselves larger than we are. It is a poem about curiosity, and its last line leaves the reader standing beside the speaker at the foot of the wall, wondering too.