In a series of “Composition”, I am trying to represent the essence of humanity based on the human relationship through the metaphor of 'door'. The fundamental contradiction of the 'door' that opens and closes on the assumption of 'separation' is connected to the feature of human being that communicate with each other premised on understanding of ‘difference’. It is the paradox about the way human being exists, but it is the way they relate to one another. In a series of works, I use the images of 'door' found in my everyday life as a pixel, unit of visual language. The division and integration of space through the repetition and arrangement of the 'doors' appearing in my work indicate the paradox of human existence that coexist through 'separation', which is replacing the relationship between 'I' and 'you' with those of 'here' and 'there'. It is an attempt to visualize the interrelation between self and others through the composition of physical objects and the relative dimension they imply.