James Kalm recovers from St. Patrick's Day with a visit to the latest exhibition of works by controversial artist Marlene Dumas. Since 2005, when one of her paintings set a record for attaining the highest price ever paid at auction for a work by a living female artist, Dumas has become a lightning rod for criticism. Dumas's "Against the Wall" uses the image of the wall as a metaphor of the intractable and tragic situation present in the Middle East, and contrasts the political and spiritual implications of what these structures portend.