The Barrier With No Door
The Gateless Gate
All 48 koans, with commentary by Ekai, called Mumon.
The Great Way has no gate; a thousand roads enter it.
— Mumon, preface
Why it belongs
Forty-eight koans that jam the discursive mind until it lets go. The gate is gateless because the Way was never barred—only mistaken for something to reason past.
Echoes across the paths
The same structure, carried in other images—one tradition's metaphor mapping onto another's.