Ritual performed by Pekka Siitoin in the Turku Society for the Spiritual Sciences
Turku Society for the Spiritual Sciences (Turun Hengentieteen Seura) was an occult group founded by Pekka Siitoin on September 1, 1971.[1]
^Häkkinen, Perttu; Iitti, Vesa (2022). Lightbringers of the North: Secrets of the Occult Tradition of Finland. Simon and Schuster. ISBN 978-1-64411-464-3. p. 133