The Compass of Zen is a book of teachings by the late Seung Sahn Soen Sa Nim, a compilation of talks given by him since 1977 that were then edited by his student Hyon Gak (Paul Muenzen). Designed to offer readers an introduction to the teachings of the Mahayana, Hinayana and Zen traditions ... Until it was first published by Shambhala Publications in 1997, much of the material was already being used in the Kwan Um School of Zen curriculum. Rather than pretending to be a work of academia, The Compass of Zen was presented in everyday language for its readership. In addition to coverage of the aforementioned topics, the book also contains Seung Sahn Soen Sa Nim's "The Ten Gates", a glossary of terms, and his lineage chart. "The Ten Gates" is his own kong-an curriculum for students in his Kwan Um lineage, each one being followed by commentary by him in the text. Today there are Twelve Gates.
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Seungsahn implemented the use of simple phraseology to convey his messages, delivered with charisma, which helped make the teachings easier to consume for Western followers. Some of his more frequently employed phrases included "only go straight" or "only don't know". He even went so far as to call his teachings "Don't Know Zen", which was reminiscent of the style of Bodhidharma. Seungsahn used correspondences between himself and his students as teaching opportunities. Back-and-forth letters allowed for a kind of dharma combat through the mail and made him more available to the school's students in his absence. This was another example of his skillful implementation of unorthodox teaching methods, adapting to the norms of Western culture and thus making himself more accessible to those he taught. ... Seungsahn also developed his own kōan study program for students of the Kwan Um School, known today as the "Twelve Gates". These twelve kōans are a mixture of ancient cases and cases which he developed. Before receiving inka to teach (in Kwan Um, inka is not synonymous with Dharma transmission), students must complete the Twelve Gates, though often they will complete hundreds more. One of the more well known cases of the Twelve Gates is "Dropping Ashes on the Buddha", the Sixth Gate, which is also the title of one of his books. In the book The Compass of Zen, this kong-an is transcribed as follows: "Somebody comes to the Zen center smoking a cigarette. He blows smoke and drops ashes on the Buddha." Seungsahn then poses the question, "If you are standing there at that time, what can you do?" Not included in this version of the kōan is the Kwan Um School of Zen's following side note on the case, "[H]ere is an important factor in this case that has apparently never been explicitly included in its print versions. Zen Master Seung Sahn has always told his students that the man with the cigarette is also very strong and that he will hit you if he doesn't approve of your response to his actions."