The art work is, to be sure, a thing that is made, but it says something other than the mere thing itself is, allo agoreuei. The work makes public something other than itself; it manifests something other; it is an allegory. In the work of art something other is brought together with the thing that is made. To bring together is, in Greek, sumballein. The work is a symbol.
Lexicon 5: Thingly Aspect of the Artwork