What does it mean to be a Western Buddhist? For the predominantly Anglo-Australian affiliates of two Western Buddhist centres in Australia, the author proposes an answer to this question, and finds support for it from interviews and her own participant-observation experience.Practitioners' prior experiences of experimentation with spiritual groups and practices-and their experiences of participation, practice and self-transformation-are examined with respect to their roles in practitioners' appropriation of the Buddhist worldview, and their subsequent commitment to the path to enlightenment.Religious commitment is experienced as a decision-point, itself the effect of the individual's experimental immersion in the Centre's activities.During this time the claims of the Buddhist worldview are tested against personal experience and convictions.