The story puts forth the proposition that "True Art" must of necessity be incomprehensible, or at best, only comprehensible by the "right people."
See also: Post Modernism, True Art Is Angsty, Everyone Is Jesus in Purgatory, Mind Screw, What Do You Mean, It's Not Didactic?, Viewers Are Geniuses, Design Student's Orgasm, Word Salad Lyrics, Widget Series, Le Film Artistique. [tvtropes.org]