In the patois of punditry, “charismatic” has come to mean little more than “like a rock star.” But the striking thing about the charismatic leader is the extent to which his followers regard him as a healer of wounds, an alleviator of pain. In this sense, surely, Senator Barack Obama is charismatic. The carefully knotted ties and the dark, conservatively tailored suits only accentuate the exoticness of his shamanism; he has entered the American psyche not as a hero but as a healer. The country, or much of it, has longed for such a figure, a man from the once-oppressed...