What is the most important element or principle of art? why?

Explanation:

In any event, contrast (or the lack of it) is the principle that most often dominates all the others. (Contrast > space, balance, scale/proportion, rhythm, unity/variety, emphasis). So the element the artist chooses to make dominant in terms of contrast will generally be the most important

to reform the distraught soviet union, the democratization of the communist party was promoted through party secretary mikhail gorbachev's policies of “perestroika” and “glasnost.” perestroika refers to the reconstruction of the political and economic system established by the communist party.

that is probably something for you to answer