The exhibition called “The Spiritual in Art: Abstract Painting 1890-1985,” which Maurice Tuchman has organized with the assistance of Judi Freeman at the Los Angeles County Museum of Art, is the kind of event that illuminates a good deal more than its ostensible theme.[1] The theme itself—the role played by certain occult or spiritualist doctrines in the creation of abstract painting from its origins to the present day—is an important one, and in recent years we have had ample opportunity to become better acquainted with it as more and more scholars have explored the often arcane ideas which are believed to have exerted a considerable influence on the aesthetics of abstraction. About the early history of abstract painting, anyway, these unquestionably have much to tell us. Moreover, the need for an exhibition that would attempt to bring our increased knowledge of...