He is well aware of the nature, contents and use of the Seonhwa production tools, and works on the basis of the traditional fan, including the posture of Seonseung based on Buddhist doctrines, and the preparation process of Seonhwa through the meditation and performance.

Park Man-sik, the owner of Seonhwa, has a distinct lineage and lineage genealogy, and is a Seonhwaseung who has both systematic theory and performance.

In particular, it is highly regarded that the quality of the Seonhwa is actively reflected in Seonhwa through meditation and performance in the process of producing Seonhwa, and it is highly qualified to designate and recognize intangible cultural assets designated by Busan Metropolitan City, including the fact that the work is not only aesthetic perfect but also the ability to write through the Seonhwa can be freely used beyond certain boundaries.