Yeonam Park Ji-won particularly sought an alternative of an ideal world through the Daoist point of view even though he was a reader of Confucianism. Focusing on this, this writing is to examine several subjects of a Daoist ideal world found in The Story of Heo Saeng, a Chinese-language novel by Yeonam. In this writing, I came to see aspects of the existential openness of an island contrasting with the artificial closeness of land by examining the qualities of openness and closeness revealed through the spatial metaphor of an island and land. I also reviewed the significance of the spatial migration to an island with a sense of this matter in mine. In addition, I examined what significance spatial migration to an island had as a solution to the bandits that caused confusion at the time of Yeonam. Additionally, I investigated that the ideal world Yeonam implanted through Heo Saeng has a Daoist characteristic on the basis of the discourse of existential virtue, and that it has a quality of an experimental thinking which tolerates the assumption of other being. What Yeonam tried to reveal through seeking an alternative of reality reform of a Daoist ideal world is both the exact understanding of a structure that forces human beings and the importance of real efforts to come up with a plan to overcome through this. In this respect, the Daoist ideal world Yeonam sought is said to have taken on the character of a complementary model in reality in the meaning of otherness, enabling us to diagnose and reflect on the problem here and now, rather than an absolute alternative.