The most important collections of them are the "Blue-Cliff Records" and the "Gateless Gate".
The most important collections of them are the "Blue-Cliff Records" and the "Gateless Gate". With a name meaning "public question", they originated during the formative period of Ch'an in China, and it remains one of the main practices of Renzai. They were used by masters to test their students' enlightenment through their expressions of spiritual intuition in paradoxical language. "What is the sound of one hand clapping" is a major example of, FTP, what statements used in Zen Buddhism?
The most important collections of them are the "Blue-Cliff Records" and the "Gateless Gate".
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