Yanai Postelnik has been engaged in full-time dharma practice and service since 1990. He is inspired by the Thai Forest Tradition and nourished by time spent in nature, and has been teaching retreats around the world for over 25 years. Yanai is a member of the Guiding Teacher Council of Gaia House, in Devon, England, and of the Core Faculty of Insight Meditation Society, Massachusetts. Since 2018, Yanai has been actively engaged together with many others, in calling for an urgent response to the climate and ecological emergency.