“…Graduate students and I (first author) have been studying powerful learning experiences for the past seventeen years, attempting to understand their nature and, eventually, to offer guidance for their creation (Bolger, Codner, Reuning-Hummel, & Rowland, 2011;Raabe & Rowland, 2013;Reuning-Hummel, Meyer, & Rowland, 2016;Rivera & Rowland, 2008;Rowland & DiVasto, 2001;Rowland, Hetherington, & Raasch, 2002;Rowland, Lederhouse, & Satterfield, 2004). We have studied this phenomenon with adults in various contexts and, as general conclusions proved elusive, searched for fundamental principles in groups and circumstances that were increasingly similar.…”