Hansueli F. Etter has a PhD in Anthropology and lectured for many years at the University of Basel. He graduated from the C. G. Jung-Institute in Zürich in 1982 and works in private practice. His main interest and research lies in the topics of the religious dimension of Jungian psychology and in the secret relation between psyche and matter. He is a published author of many books and papers, in German and in English. He is the president of The Foundation for Jungian Psychology, 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.