The real ideas of a poem are not those that occur to the poet before he writes his poem, but rather those that appear in his work afterwards, whether by design or by accident. Content stems from form, and not vice versa. Every form produces its own idea, its own vision of the world. Form has meaning; and, what is more, in the realm of art only form possesses meaning. The meaning of the poem does not lie in what the poet wanted to say, but in what the poet actually says. What we think we are saying and what we are really saying are two quite different things.
— Octavio Paz (Alternating Current)