Matthew Sacchet, PhD, is the Director of the Meditation Research Program at Massachusetts General Hospital and an Associate Professor of Psychiatry at Harvard Medical School.  His team studies advanced meditation, focusing on the states and stages of contemplative practice that develop over time and with mastery. He has received significant support from numerous foundations and repeat awards from major U.S. federal funding bodies, including the National Institutes of Health (NIH) and the National Science Foundation (NSF).