In this koan, a buffalo passes through a window. His entire body passes through but not his tail. Why is that? After his enlightenment, the Buddha taught for forty-two years amidst the pain and suffering of the world. What was his freedom? In this entrancing talk, Ryushin Sensei explores what trips us up - in practice and in our lives: ideas of completion, attainment, perfection - and our ideas about practice. Our questions and suffering move us to search. But is the search itself getting in the way?