Swampland Flowers: The Letters and Lectures of Zen Master Ta Hui, translated by J. C. Cleary
The writings of the twelfth-century Chan Buddhist master Ta Hui Tsung Kao are testimony to the timelessness of Zen teaching. His letters, sermons, and lectures, often addressed to laypeople, are utterly simple-and utterly effective in helping us to see and let go of discursive thinking. If you're inclined to think that, as a twenty-first-century person, you need a contemporary teacher to convey the buddhadharma to you, give Ta Hui a try. You'll see that he conveyed it marvelously well seven centuries ago.