6Included in this volume are Suzuki's famous study "Enlightenment and Ignorance," a chapter on "Practical Methods of Zen Instruction," the essays "On Satori -- The Revelation of a New Truth in Zen Buddhism" and "History of Zen Buddhism from Bodhidharma to Hui-NÍng (Yeno)," and his commentary on "The Ten Cow-herding Pictures" which have long been used in Zen to illustrate the stages of spiritual progress.