Oliver St. John received initial training in the Hermetic Art by working through an experimental five-year course written by W.E. Butler, an Initiate of occultist Dion Fortune's Fraternity of the Inner Light. On completion of this in-depth study and practice of the Western Mystery Tradition, he accepted the Law of Thelema, the magical current that was unearthed through the mediumship of Aleister and Rose Crowley. This led him to found the Ordo Astri (Order of the Star) Hermetic college in 2000 e.v., and to join Kenneth Grant's Typhonian Order (formerly Typhonian OTO) in the same year. Over the course of time Oliver St. John has also worked with the late Mary Long (author and student of Dion Fortune), Gareth Knight, Dolores Ashcroft-Nowicki (co-founder of the Servants of the Light Association) and Lady Olivia Robertson (co-founder of the Fellowship of Isis).