What is real? The word, 'reality' that we use on a daily life literally means 'fact or state that actually exists at present'. Everything perceived through the human sensory system is felt as if they exist in 'reality' as intuitive objects. From an epistemological point of view, however, they are all subjective objects that reflect the relationship with 'I' rather than the independent objects. In other words, all cognitive subjects cannot perceive the state of the world that has excluded their own intervention; there is no objective reality everyone truly shares though their experiences can seem to be the same.

Therefor, the world of 'I' and 'you' cannot be the same or different. It is because the objects that cannot be shared are impossible to compare from the beginning. The series, “Individual Reality" is the result of thinking about such a dualistic recognition world between self and others. The images to which a particular viewpoint and vanishing point are applied can be recognized as ‘real’ or ‘virtual’ depending on the observer’s point of view. 'Optical illusion' by itself implies imperfection of human sensory system and cognitive system. Reality and illusion are always on the same line, and 'reality' is only a relative and concrete representation floating in such uncertainty. Where is the world we recognize through the five senses between reality and illusion? I raise questions about the coordinates of self-consciousness in each reality.