Note f13 — INTRODUCTION
Reading edition
Hekiganshu is a collection of one hundred “cases” with Seccho’s (Hsüeh-tou) poetical comments and Yengo’s partly explanatory and partly critical annotations. The book was brought to Japan during the Kamakura era, and ever since it is one of the most important text-books of Zen, especially for the followers of the Rinzai school.