The purposes of this study are to explore in what metaphoric system the transcendence shown in Park Mok-Wol`s middle period poetry 『Ran·Gita(蘭·其他)』 and 『Cheong-dam(晴曇)』 generates poetic meanings and tension by employing Hrushovski`s metaphor theory and to unveil his conceptual expansion and aesthetic renewal in this process. In chapter 2, it is discussed that the material metaphor is formed in Park Mok-Wol`s middle period poetry and his transcendent desire is embodied. This chapter shows the aspects of mutation, from human level to material level and from material level to God`s level. In chapter 3, it is discussed that the plant metaphor is formed in his middle period poetry and his transcendent desire is embodied. This chapter shows the aspect that human level is mutated to plant level such as `tree` or it`s `fruit.` In Park Mok-Wol`s middle period poetry, which is formed plant metaphor and material metaphor, his transcendent orientation for overcoming the existence of the limitedness is being meaningful. By analyzing transcendent metaphor system shown in Park Mol-Wol`s middle period poetry, this study has a distinction from other studies that has discussed poetic awareness in the same period poetry.