This study was designed as part of the work to build ‘humanities of great journey’. ‘Great journey’ refers to a journey in which one journey engendered text, and that caused another text and different humanities. Therefore, the humanities of great journey is composed of the journey that can be regarded as great journey, the resulting text, and other texts and humanities created by them. Specifically, in this article, I first presumed journey as a kind of ‘游[ludus]’. Next, I clarified the nature of 游[ludus]. Then, through the Xuanzang(玄奘)’s pilgrimage to the Western Regions[西域], the assertion that the journey would be reborn as a great journey when such nature was fully realized. To this end, I established the concept of the great journey, and at the same time, exemplified the practice of great journey on the basis of the corresponding cases in the history of China. This article has four chapters. Chapter 1 is an introduction. In Chapter 1, I explained the reason why I named the journey that created the ‘texts of civilization’ as great journey, and presented the topic of humanities of great journey’ as a subject of the human achievement achieved by great journey, As a first step for the construction of humanities of great journey, a brief explanation was given of the pilgrimage to the Western Regions and the reason to deal with the Datang Xiyouji大唐西域記. However, in order to achieve the purpose of this study, it is necessary to define the concept of key terms necessary for the construction of humanities of great journey. I think ‘游[ludus]’ is one of the key terms. In chapter 2, I dealt with the case of great journey in the history of humanity in China, and based on this, we built the concept of ‘游 [ludus]’. Through this, I identified the reason why ‘游[ludus]’ was chosen as a key concept in the construction of humanities of great journey. In chapter 3, the pilgrimage to the Western Regions which created the texts of civilization, Datang Xiyouji大唐西域記, was re-examined from the angle of ‘游[ludus]’. In this process, I considered the reason why the pilgrimage to the West Regions was ‘游[ludus]’ and what made the pilgrimage to the truth into ‘游[ludus]’. Chapter 4, as a conclusion, I summarizes the previous discussions and highlights the current implications of constructing humanities of great journey’.