Andreas Schweizer, Dr. theol. (Ph.D.), is a practicing Jungian analyst in Zürich. He studied theology and comparative religion in Zürich as well as Egyptology with Prof. Erik Hornung in Basel. He has been training analyst since 1986, first at the C.G. Jung Institute of Zurich in Küsnacht and currently with The International School for Analytical Psychology Zurich (ISAP). He is president of the Psychology Club, founded in 1916 by C.G. Jung, and was for fourteen years president of the Eranos Conferences in Ascona. He has published numerous essays and books, including The Sungod's Journey through the Netherworld (2010).

Regine Schweizer-Vuellers, Ph.D. studied German literature with special emphasis on the Middle Ages and European folk literature. She is a Jungian analyst in private practice in Zurich, Switzerland. She works as a training analyst, supervisor and lecturer. She served at the Inaugural Board of The Research and Training Centre in Depth Psychology According to C.G. Jung and Marie-Louise von Franz. Her interests include medieval mysticism, alchemy, fairytales, legends and folksongs. She has published various psychological interpretations. Her book Die Heilige am Kreuz [The Feminine on the Cross] explores the feminine aspects of the Christian God image in folklore and mysticism from the Middle Ages until 19th/20th century.