Skeptics have long questioned whether Bernini's great sculpture, The Ecstasy of St. Teresa , is about a purely religious experience: Teresa of Avila (1515-1582) wrote of her dream that an angel thrust his fiery golden spear into her "to pierce my very entrails." When he finally withdrew after much thrusting, her heart was attached. The experience, she reported, was "not bodily, but spiritual." Bernini's sculpture was commissioned by the Catholic church for the Cornaro Chapel in Rome. Regardless of Bernini's motives, it certainly attracted the crowds. For centuries, devout housewives sat in the church thinking, "I'll have what she's having." 350 years after Bernini, Popes and kings no longer buy art. They have been replaced by a new commercial class of patrons, fueled by the birth of capitalism and the ascendancy of the modern corporation. But some things never change. Whether church or refrigerator manufacturer, they still commi...