Art is to the SuperOrganism, i.e. culture/civilization, gene/meme synthesis, what DNA is to the Organism.
It expresses three dimensions of meaning, i.e. three levels of information are being externalized, a context, a subtext and a pretext, similarly DNA has three level of appearance, body, i.e. presence interpreted as appearance, nervous dynamic, i.e. activity, movement, behaviour, and mind, i.e. thought.
Language is an art-form and is a culture's lifeblood, the externalization of inherited memories, couples with ongoing experiences in relation to intention, goals, objective, i.e. ideals, expectations, desires.
Linguistic use, application, and its quality externalizes this tridiastic - three dimensional - synthesis.
A culture/civilization's art, i.e. gene/meme synthesis named SuperOrganism, represents its dynamic relationship with world, from youthfulness towards old age, as well as the particular condition of the SuperOrganism during any phase in its history.
It is reasonable to assume that through art, and language use, a disease can be diagnosed, similar to how an individual's distress and inner turmoil can exhibit itself through its use and application of language - not only through the overt meanings, but also the implied and the covert meanings as part of every linguistic exchange, i.e. information exchanged through words, physical gestures, expressions, movement, and vocal rhythms, tones etc.