Raphael Weilguni and Viola Relle’s exhibition of their most recent works in porcelain was titled “bring me back to earth,” the phrase’s meaning as ambiguous as it is to the point: The making of ceramics, after all, is an “earthen” affair, inextricably bound up with our planet and the minerals it brings forth. But the line could also have been lifted from a work of science fiction, spoken by an astronaut yearning to return home from a faraway galaxy. Such ambivalence, between the utterly tangible and the purely imaginary, between real life and unreal phantasmagoria, is also a defining characteristic