For Park, Seo-Bo, paper is more than a mere sheet of paper. It is something with much greater significance. He does not simply see a piece of paper as something to draw on, but as a solemn object he has to confront. Here what is meant by paper is not a physical substance which is in opposition to the spiritual, but a process in which he can be both physically and spiritually engaged. That is why he regards paper as something he can change by becoming one with the particular substance.

Park, Seo-Bo believes that by working with the paper, material and activity are fully integrated. Paper is not just the ground of his pictures: he wants to bring out its essential character thought his actions. He does his utmost to let the paper act as paper.

Matter and action are not related in aim or means but are two essential elements, working in parallel. They are the two constituent elements of Nature, and the world is perceived as a harmony and union between them. When Park talks about the essence of matter, he is referring to a state in which matter and action are co-existent, where the walls between them are broken, in a process of harmony and union. In philosophical terms, this is the state of ontological unity.

When the optimum interaction between matter and action is realized, the state of union is achieved.

So the visible properties of matter are signs of the unity that manifests itself in the harmonization of substance and action. Put more simply, half of matter is substance and the other half is action, but the two are not in limbo: they transcend the opposition between matter and action.

The state of sublimation appears as the ‘light of being’. Physical properties are the visible manifestation of this ‘light of being’, the result of matter bonding with action. ‘Light’ in this sense refers to spiritual energy emanating from the process. In other words, it should be an echo of being.