The poem is addressed to "you," and that "you" seems to be the speaker's other self, or perhaps the reader looking at themselves. Again and again it repeats "You and you," as if two versions of one person are standing face to face. The lines pile up contradictions: yes and no, right and wrong, two and one and none. Nothing about this person can be pinned down, yet the poem insists they are "infinite" and "one and the same."
The speaker sounds calm, almost gentle, but a little teasing too. Saying "you don't yet know that you don't know" suggests someone still unaware of their own uncertainty. The mood is reflective and slightly dizzy, like staring at your own face for too long. The ending turns oddly comforting. "Face your double" feels like advice to stop dodging yourself, and "you can always count on them" suggests that, whatever else shifts, you are the one presence that stays.