This paper is to compare the characteristics of the transforming aspects of the poetic self in the works of a Korean Poet Yun Dong-ju and an Irish poet Seamus Heaney. Both poets described their own attitudes toward the outer world, first to nature and then to their colonial country. Yun Dong-ju deals his outer world as co-responsive as his mind and feeling. Thus the nature, in Yun’s works, is a medium to express the feeling of the poetic self. In other words the poet Yun describes nature as his own feeling towards his conditions. So the description of nature conceals the poetic persona’s feeling, which means the humanization of nature. With this process Yun’s works mirror the poet’s search for his consciousness and his way to respond to the outer world. The nature, in the early works of Seamus Heaney, is suggested as a stimulus to the awakening of the poetic self toward the outer world, which changes and transforms itself. This awakening of Heaney’s poetic self leads to the progressive learning to judge and criticise his colonial oppressive condition in contemporary Ireland. With the awakening of outer world Heaney defines himself as a digger with his pen into the past and present condition in Ireland, and then suggests his attitude towards the colonial condition as that of ‘artful voyeur’. In this respect the poetic self in Heaney’s early works shows the complexity of self recognition as well as his views on the outer world mixed with pride as an Irish poet and shame as a colonial people and as a dumb observer.