There is something extremely intriguing about emotion. What is it that a joke, a discovery, a gesture, a photo, a painting, a few lines, that they can trigger something, can cause something to happen unexpectedly that resembles the loosening of a lock. A key that seems insignificant at first glance fits a lock that you didn't know you were carrying. I have long been curious about those keys and those locks, that mechanism of the click.    Rutger Kopland