16. See Luk, Chan and Zen Teaching, Second Series, p. 139.
17. See Chang Chung-yuan, Original Teachings of Ch'an Buddhism, p. 50.
18. Ibid., p. 69.
19. When R. H. Blyth translates this poem in Zen and Zen Classics, Vol. 2, called the Hokyozammai in Japanese, he includes a grand dose of skepticism concerning its real authorship, since he believes the poem unworthy of the master (p. 152).
20. Ibid., p. 157.
21. See Chang Chung-yuan, Original Teachings of Ch'an Buddhism, p. 48.
22. Ibid., p. 70.
23. Ibid., p. 71.
24. Ibid., p. 72.
25. Dumoulin, Development of Chinese Zen, p. 26.