The speaker feels lost and stuck, and the poem uses the image of floundering in water to show it. At first the water seems unfamiliar, but then the speaker corrects themselves: maybe it has been mapped before. That small shift matters, because it suggests this isn't a new problem. They have been here already, even watching someone else say "the exact same words," which hints at a pattern repeating itself, perhaps an argument or a conversation that keeps going the same way.
The middle of the poem is blunt. The speaker knows what went wrong and knows it still needs fixing, but has no idea how. That gap between knowing and doing is the heart of the poem. The ending piles up "broken head," "broken soul," "broken mind," and the repetition feels like going in circles. The mood is tired, frustrated, and quietly desperate, with no answer offered, only the question left hanging.