"Simply put, it does not mean that making art gives the artist insight into what he makes art about- into his feelings about his subject matter. He may be acting them out- repeating or rehearsing them- through the material rather than reflecting on them. It is not clear to what extent the act of making is an act of reflecting, however much reflection- about how to make a particular work of art- may go into it. The work of art may be a materialized expression, but it is not necessarily a demonstration or proof of insight into them."
Kuspit, D. (2003). The End of Art. New York, NY: Cambridge University Press. pp. 16-18