While the evolution of consciousness is complex the specific variations that find their way into great works of art have been largely functional and based on daily ritual and a belief in a body of perceived supernatural forces; or to put it differently, beings who are considered superior to ordinary men and women and who encapsulate higher powers that can been drawn upon through the intermediary phenomena of nature and the creative imagination. These belief systems have given rise to a particular canon of spiritual existence often derided as heresy, deviant, insane and anti-social, but which eases the emotions associated with the primal isolation.
If the isolation increases belief systems become more transcendental and this renders Outsider Art as a new way of envisioning the world. Consider for instance the architecture of Antoni Gaudi [1852-1926] which includes a cathedral, a park, housing and more. Gaudi has greatly influenced the Spanish City of Barcelona, whereby every year millions of people from across the world flock to see his work. Gaudi was greatly influenced by the primal shapes, textures, colours and forms of nature and this is reflected in his use of pillars and brightly coloured mosaics, his stoned curves and his twisted iron sculptures that were totally out of step with the architecture of his day as well as that of his contemporaries, but very in-step with the primal libidinal expressions of the Outsider artist.
[i] The Central Path, Middle Way or Middle Path (Pali: majjhimā paṭipadā; Sanskrit: madhyamā-pratipad[a]; Chinese: 中道zhōngdào; Japanese: 中道chūdō; Vietnamese: Trung đạo) is the term that Siddhartha Gautama used to describe the character of the path he discovered that leads to liberation.
[ii] Julia Reinhard Lupton and Kenneth Reinhard  After Oedipus Shakespeare in Psychoanalysis, Ithaca and London, Cornell University Press, p2.
Department of Neurology and the Center for Cognitive Neuroscience
The University of Pennsylvania, Philadelphia
Pennsylvania 19104, USA INTERNATIONAL REVIEW OF 39
NEUROBIOLOGY, VOL. 74.