pleasantly astonished

The art to astonish in a pleasant manner, to make a subject strange and yet familiar and attractive, this is romantic poetry.

—Novalis

Quoted in the The Brahms Notebooks* (Pendragon Press, 2003) translated by Agnes Eisenberger

*originally Jungen Kreislers Schatzkästlein by Johannes Brahms, edited and introduced by Carl Krebs

defamiliarization or ostranenie

The purpose of art is to impart the sensation of things as they are perceived and not as they are known. The technique of art is to make objects 'unfamiliar', to make forms difficult, to increase the difficulty and length of perception, because the process of perception is an aesthetic end in itself and must be prolonged. Art is a way of experiencing the artfulness of an object; the object is not important.

—Viktor Shklovsky, "Art as Technique", 1917, Russian Formalist Criticism: Four Essays, edited by L.T. Lemon & M.J. Reis, (U. of Nebraska Press, 1965, p12)