Zen Master Jok Um (Ken Kessel) received transmission in April 2017. He began studying with Zen Master Seung Sahn in 1975. He is a Licensed Clinical Social Worker and a psychotherapist, working with children and families in foster care, substance abuse, outpatient and inpatient mental health and therapeutic preschool settings, as well as in private practice. He specializes in infant and early childhood mental health. He is guiding teacher for New Haven Zen Center, Hwa Um Sa-Orlando Zen Center, Gateless Gate Zen Center (Gainesville) and Cypress Tree Zen Group (Tallahassee). He also teaches at the Chogye International Zen Center of New York, as well as at other Zen Centers and affiliates.