In this first Teisho, given opening night of Autumn Sesshin 2019, Rinzan examines case one of the Mumonkan: "Joshu's Mu." Zen retreat asks us to deepen our practice. With fewer distractions, it becomes easier to throw our lives into what is in front of us with both profound determination and a sense of ongoing inquiry. In such a way, we can open up to the truth that is already manifested in full.