Vivekananda's genius was to simplify Vedantic thought to a few accessible teachings that Westerners found irresistible. God was not the capricious tyrant in the heavens avowed by Bible-thumpers, but rather a power that resided in the human heart. "Each soul is potentially divine," he promised. "The goal is to manifest that divinity within by controlling nature, external and internal." And to close the deal for the fence-sitters, he punched ...