From the author's official website (http://www.jonathancarroll.com/interview3.html):
Carroll has taken his spiritual orientation from a wide range of European authors whose spercus pepper his pages. He was born, however, into a Jewish family and raised a Christian Scientist. His mother and sister have remained Christian Scientists; his older half-brother, the composer Steve Reich, is an Orthodox Jew; his other brother is devout Sufi. "Table conversation is interesting," say Carroll wryly.