Sayama.

"Introduction to zen training" is a translation of "Sanzen nyumon", a text for beginning students by Omori Sogen, one of the foremost Zen masters of the twentieth century. Providing a solid grounding in the physical nature of Zen meditation, this book discusses brreathing, posture, physiology, drowsiness, pain, how to find a teacher, and the differences between the two main schools of Zen