Peter has practiced meditation for 29 years in the Theravada and Tibetan Buddhist traditions. He has done more than 31 months of silent retreat. He has taught insight meditation (mindfulness) since 2003 and has completed the Community Dharma Leader training through Spirit Rock Meditation Center. Peter teaches retreats and dedicated practitioner groups based in Longmont, CO. He has taught mindfulness to diverse audiences, from Colorado juvenile justices to school teachers to environmentalists. He is one of the founders of the Rocky Mountain Ecodharma Retreat Center in the mountains near Boulder, CO.

Peter has been practicing as a transpersonal psychotherapist since 2007, using mindfulness and spirituality to heal emotional distress. In an 18-year career in the environmental field, Peter worked as an environmental educator for Massachusetts Audubon Society, as a wildlife biologist and lecturer at the University of Vermont, and as a consulting ecologist for groups such as the Nature Conservancy and the U. S. Forest Service. Peter enjoys playing piano, golfing, bird watching, hiking and being outdoors as much as possible.