I supplemented my interviews with efforts to learn all I could about historical and cultural influences on Aum—from writings by and discussions with scholars concerned with Japanese religion and society, Japanese journalists who had covered or followed the story of the cult, and Europeans and Americans familiar with Japan’s religious climate. I utilized the Japanese and American Internets for early reports on Aum and details of the ongoing trials of its leaders, especially that of its guru. And I drew upon my past work on Japan, including studies of its youth and of prominent figures of the modern era.
I focused on the inner life of Aum members and above all on the extraordinary ramifications of the guru-disciple relationship. Most of Aum’s wildly destructive visions came from its guru, but he in turn was completely dependent upon his disciples to sustain those visions and act upon them—indeed, for his own psychological function. One can understand little about Aum without probing the extremity of what can be called its guruism, and that guruism helps us to grasp certain essential aspects of the leader-follower interaction in much of the extreme behavior taking place elsewhere. Included in Aum’s guruism was a bizarre embrace of science to “prove” Aum’s religious truths and to provide Asahara with the kinds of ultimate weapons that might bring such “truths” to fruition.