Historiographical accounts of religious change in Britain increasingly reflect the sociological notion that decline in one area of religious activity does not necessarily imply the decline of religious or spiritual activity in society overall. This kind of understanding calls for a historical account of the complexity of spirituality and religious affiliation. Based on a study of the archives of a religious group called the Panacea Society, which promoted a spiritual healing method from 1924 to 2012, the article describes the main styles of engagement with a non-traditional religious form in Britain. The article analyses the Church of England's understanding of the migration of adherents between Christian Science, Theosophy, Spiritualism and itself in the interwar period. Showing the religious and spiritual mobility of individuals, the article indicates the capacity for non-traditional religion to engage people who were not especially religious and to take on the fullest religious significance for some participants.