Linguistics which is bent on establishing strict scientific logic to everyday language as its main subject was prone to be inactive in study of literature. Interpretation in the dimension of art was considered as a realm of literature. However if linguistics should open itself to diverse and characteristic aspect and function of language then literature is truly one of the most important source for uncovering poetic function, aesthetic aspect and process for creation of beauty of language. Recently level of linguistic interest in works of Korean literature has been heightened. Thus value and importance of language in literary works have been recognized and people concerned are contemplating profoundly about what can be done by Korean language for literature works and linguistic analysis of poems and novels have been carried out. Poet Yun Dong-Ju among many other Korean poets of middle standing while enduring and internalizing time he had took the path of self verification process thoroughly. Literary language which was used in the process of Poet Yun Dong-Ju`s watching, enduring and aesthetizing is considered as very valuable in searching for poetic function, aesthetic function and creating of meaning. Thus this author attempted to broaden horizon of literary language through analysis of the Poet Yun Dong-Ju`s poems and to disclose identity and secret of literary language clearly and precisely through this study. Literary language being used in the process of Poet Yun Dong-Ju`s watching, enduring and aesthetizing is viewed as very valuable for search of its poetic and aesthetic function and creating of meaning. Furthermore Poet Yun Dong-Ju contributed to extending horizon of literary language by expressing predicates in diverse aspects.