Unplunge

After that he plunges into a dark-room to develop the picture, unplunges indefatigably into the sunlight to print it, enlarge it, reduce it, stick it in, unstick it, stick it in straight, unstick himself, […]

The crucial image for Cocteau's oeuvre of the poet unplunging out of the mirror in Le sang d'un poète (1930) has its origins in this very poem.