Hansueli F. Etter has a PhD in Anthropology from the University of Zürich and was lecturing for many years at the University of Basel. During the years he spent time working on archaeological excavations. He received his diploma from the C.G. Jung-Institute in Küsnacht and has worked since then in his own practice. He is the president of the Foundation for Jungian Psychology in Küsnacht and a founding member of the Research and Training Centre for Depth Psychology according to C.G. Jung and Marie-Louise von Franz, Zürich. His main interest in his own research is in the field of the religious dimension of Jungian psychology and in the secret relation between psyche and mater (Synchronicity). He has published books and articles in the field of Anthropology, Archaeology and Jungian Psychology.