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 engaged with Extinction Rebellion, seeking to bring about urgent change in the face of the climate and ecological emergency, in the service of all beings.