Fred von Allmen He has spent four years in retreat at the Insight Meditation Society (IMS) in Massachusetts, USA, under Joseph Goldstein, Sharon Salzberg, Jack Kornfield and Christopher Titmuss: https://de.wikipedia.org/wiki/Fred_von_Allmen Do you know another spiritual teacher in Switzerland who did this? Write it in the comments below. Ursula Flückiger who teaches also at the Meditation …