San Ji Sah (or, Perceive World Sound High Ground Temple). The center functions independently of the Kwan Um organization today. Over his tenure as Guiding Teacher, Seungsahn appointed many Dharma heirs. He created the title Ji Do Poep Sa Nim (JDPSN) for those not ready for full dharma transmission but capable of teaching at a higher capacity. In 1977, Seungsahn was hospitalized for cardiac arrhythmia and it was then discovered that he had advanced diabetes. He had been in and out of hospitals for heart complications for years preceding his death, and in 1987 began spending much less time at his residence in the Providence Zen Center. Starting in 1990, and under invitation from Mikhail Gorbachev, Seungsahn began making trips to the Soviet Union to teach. His student, Myong Gong Sunim, later opened a practice center in the country (Novgorod Center of Zen Meditation). Teaching style 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 him 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. He was a supporter of what he often termed "together action"—encouraging students to make the lineage's centers their home and practice together. 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