For in metaphor Abstraction can give one kind of wind, Concretion another, and if one metaphor is complicated by another they can together untie the bag of all the other winds that toss us between reality and imagination.

Metaphor shakes our bearings on the question of how we stand in relation to 'objective reality', and a metaphor inside a metaphor unfixes those bearings altogether; it makes us lose our direction-fix on the position of what is 'out there' in 'reality' and the position of our own consciousness of that.

...metaphor's power to collapse the wall between fact and fiction and between subject and object is brought into full play firstly by displaying the element of contriving, or of invention, which says of the contents of the poem, 'These contents are "framed".

Metaphor metaphorized—the double jump outside the convention—breaks the hold of the convention and enables us to become aware of the subjectivity of objects and the objectivity of subjective processes.