Whether or not the poet knew all this about the word “corridor,” I very much doubt she was consciously aware of it while writing this poem. When a poet writes, she feels instinctively if a word is correct. She could easily have written other words there: the daffodils could have brought themselves into the meadow, into the field, into the garden, and so on. But the poet’s brain chose “corridor,” she knew it was the right word, probably because it is in a sense the wrong word, the word we were not anticipating. This is what Aristotle meant when he wrote, in The Poetics, that poets are those who have “an eye for resemblances”; that is, for seeing similarities and connections that others do not.