Freud spoke of oceanic consciousness as that in which we feel our individual existence lost in mystic union with the universe. Nothing could be more appropriate to contemporary experience, when for the first time man has left the boundaries of this globe. The oceanic effect of synaesthetic cinema is similar to the mystical allure of the natural elements: we stare in mindless wonder at the ocean or a lake or river. We are drawn almost hypnotically to fire, gazing as though spellbound. We see cathedrals in clouds, not thinking anything in particular but feeling somehow secure and content. It is similar to the concept of no-mindedness in Zen, which also is the state of mantra and mandala consciousness, the widest range of consciousness.
p. 92, as cited in: "Expanded Cinema, Gene Youngblood, Studio Vista, 1970" at hohlwelt.com, January 21, 2012 - Expanded Cinema, 1970