A research project conducted in 2003-2006, the Spirit of Generation Y, using both extended interviews and a nationwide survey, revealed three main strands in the spirituality of young Australians: traditional, alternative and humanist. Their involvement in traditional religions was declining, like that of their parents, and although some adopted alternative spiritualities, the stronger trends were toward indifference or humanism. Eclecticism in worldviews and cautiously relativistic values seem to be responses to an uncertain world, in which isolated individuals have only fragile support structures for their identity. (Contains 5 notes and 9 tables.)