Begin, ephebe, by perceiving the idea
Of this invention, this invented world,
The inconceivable idea of the sun.
                    - Stevens, Notes Toward a Supreme Fiction

Re-reading B.J. Leggett's useful book, Wallace Stevens and Poetic Theory. Interesting chapter on what Stevens may have been getting at with the title "It Must Be Abstract". How he drew upon I.A. Richards' book Coleridge on Imagination to come to a notion of how the mind - whether in perception ("the poet of reality") or imagination ("the poet of fictions") - always abstracts : that all words are imaginative abstractions, creations of thought. In this way he plays/works with the imagination/reality pairing, without getting stuck (like some of his critics) on one prong or the other.

Mandelstam somewhere: "Love the idea of the thing more than the thing itself."

Byzantine icons, Nicholas Cusanus. "God" being a human concept, a name, for something we cannot really grasp; humankind as imago dei one of its imaginative corollaries, a concept which can come to have meaning both in contemplation & action. Coleridge on the imagination as the expression of the divine "I Am". An imaginative idea of the economy of the earth. "O what a piece of Work is Man!"

Leggett shows curiously how Stevens was also heavily influenced by a biographical study of Giambattista Vico, about the same time Joyce was writing Finnegans Wake.