The Spiritual-Abstract Nexus

"Visual artists, from the generation born in the 1860s to contemporary times, have turned to a variety of antimaterialist philosophies, with concepts of mysticism or occultism at their core. Terms such as occultism or mysticism should be defined carefully because of the association with the ineffable that surrounds these words and because they are context-specific: art historians and artists use these terms differently than do theologians or sociologists. In the present context mysticism refers to the search for the state of oneness with ultimate reality. Occultism depends upon secret, concealed phenomena that are accessible only to those who have been properly initiated. The occult is mysterious and not readily available to ordinary understanding or scientific reason. 

Several ideas are common to most mystical and occult world views: the universe is a single, living substance; mind and matter also are one; all things evolve in dialectical opposition, thus the universe comprises paired opposites (male-female, light-dark, vertical-horizontal, positive-negative); everything corresponds in a universal analogy, with things above as they are below; imagination is real; and self-realization can come by illumination, accident, or an induced state: the epiphany is suggested by heat, fire or light. The ideas that underlie mystical-occult beliefs were transmitted through books, pamphlets, and diagrams, often augmented by illustrations that, because of the ineffable nature of the ideas discussed, were abstract or emphasized the use of symbols.

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The five underlying impulses within the spiritual-abstract nexus—cosmic imagery, vibration, synesthesia, duality, sacred geometry—are in fact five structures that refer to underlying forms of thought."

- Maurice Tuchman (1936 - )
“Hidden Meanings in Abstract Art"
in The Spiritual in Art: Abstract Painting 1890-1985