『雲鶴先生事蹟』과 『靑鶴集』

Unhak-seonsaeng-sajeok and Cheonghak-jip

In view of the character displayed in the Unhak-seonsaeng-sajeok one must begin by considering the secret as indicated by Yi Gyugyeong: the designation of the author named a geomancer as Wi Hanjo. If this is so, it was the first document to center on the discourses and explanations of Wi Hanjo and his followers disseminated during their travels around the world. Thus, the author could be the follower Jo Yeojeok, known as Pyeonunja Yi Sayeon, and it is possible to pinpoint the year of its appearance to roughly 1648. The version of Unhak seonsaeng-sajeok written in 1648, however, had much less content than the present copy. It is clear that the present version includes concrete summaries containing second-hand explanations concerning enthronement of King Injo and touching on such events as Japanese Invasion of Korea 1592, the destruction of the Ming dynasty, the formation of the Ching dynasty, and the period of Gimpo's reign. This content, however, is neither concrete nor detailed. It is enough to form connections with the characteristics of the secret and reflect upon them. As time went on, more concrete facts than those previously transmitted were added and the explanatory content was expanded and made firmer, being transformed from "The barbarian was destroyed by Choseon explanations" to "The barbarian destroyed the Ming dynasty and the barbarian was destroyed by Joseon." It is also thought to have first included prince Neungyang. Through this process, it was possible to include and describe a lot of history through the inclusion of historical figure. Thus, by adding material, Wi Hanjo's reputation grew as the work was disseminated, progressing through several version. One can draw these conclusions against the backdrop of the appearance in the works of characters from both the latter half of the seventeenth century and end of the eighteenth century. Talking this into account, one can opine that the document's character shows geomancer to be the secret behind the arrangement and presentation of Wi Hanjo and his followers. At the end of the document, Jo Yeojeok, the recoeded author, quotes Westrn Asia monk Neungho's travels document of mountains detailed description of eight places in good place of Joseon, which adds force to this belief. Thus, there exists a high possibility that the actual title is not Unhak-jip as indicated by Yi Gyugyeong but Unhak-seonsaeng-sajeok, as revealed by Jo Yeojeok. Unhack-seonsaeng-silgi and Unhong-yugi, recorded in Imanishi Ryu's collection, are relatively late additions to Unhak-seonsaeng-silgi and Unhong-yugi, which has been retitled so as to make Cheonghak Wi Hangjo the main thrust of the document.