The Moral and Religious Thought of Yi Hwang (Toegye): A Study of Korean Neo-Confucian Ethics and Spirituality by Edward Y.J. Ching (review)

In recent years, the study of Korean Neo-Confucianism as an international field has been growing exponentially. Compared to former decades, the number of international publications has grown significantly over the last ten years, with Edward Y.J. Chung as one of the most active scholars. The Moral and Religious Thought of Yi Hwang (Toegye): A Study of Korean Neo-Confucian Ethics and Spirituality is the culmination of an almost decade-long study of the Korean Neo-Confucian scholar, Yi Hwang Toegye (1501–1570). With a focus on the moral and spiritual aspects of the theories of Toegye, Chung maps out a brilliant overview of the philosopher's worldview and literary works. Chung's primary objective is to provide "thought-provoking" and fresh insights into one of the most important Korean Neo-Confucian thinkers in history, as well as shed light on Neo-Confucian thought in general and how Toegye's philosophy in particular can be relevant in modern interreligious dialogues (p. 149).

Consisting of ten chapters, where each chapter could serve as an individual article, Chung takes the reader through the core concepts of Toegye and his development of a form of self-cultivation different from the Chinese Neo-Confucian idea of self-cultivation. This together created a holistic religious worldview with a strong spiritual dimension, which manifests through selfcultivation practices. The first two chapters introduce Toegye and the historical context of 16^th-century Joseon-dynasty Korea (1392–1910); his understanding of the Neo-Confucian tradition as the true learning; and his rejection of Daoism and Buddhism. With the reader introduced to the immediate historical context and Neo-Confucian discourse of the time, the following three chapters cover Toegye's religious and moral understanding of the relationship between the Heavenly Principle (C. tianli, K. cheolli) and human nature (C. renxing, K. inseong). Furthermore, Chung covers the moral-spiritual implications that the Four-Seven Debate had on Toegye's later practical self-cultivation for becoming a sage. In short, the debate concerns the relation between the "four sprouts" of human characteristics as first described by Mengzi (ca. 371–289 BCE) and the seven human emotions mentioned in various classical texts. Toegye believed in the doctrine that the "experience of Heaven was within oneself" (p. 47). Therefore, to become a sage, one would have to commit to the active practice of an inner feeling of reverence (C. jing, K. gyeong) daily.

Chapter six dives into the spiritual practice of self-reflection and mind cultivation (C. xinxue, K. simhak), which was an ongoing process that would lead the practitioner closer to sagehood. The seventh chapter focuses on how this spiritual dimension of Toegye's doctrine is relevant to broader discussions of ecology today. With a strong love for nature, Toegye incorporated the idea of nature within his spiritual self-cultivation, which Chung elaborates on. It was important for the human being to be in harmony with Heaven, earth, and all myriad things. This meant respecting and spending time in nature also played a part in the daily practice of spiritual self-cultivation. Moving on, in chapters eight and nine, Chung presents a comparative study on the philosophical and theological question of how to transcend evil, as well as the matter of interreligious dialogue. By way of a textual-interpretive approach, Chung compares Toegye's thought with Christian contra Buddhist theological ideas and how these findings can help develop an interreligious approach. In chapter nine, Chung suggests that the idea of self-transcendence through self-cultivation can be the ultimate reality. In this chapter, Chung wants to break with the tendency in interreligious dialogue where many scholars rely heavily on Christian theological terms. Chung introduces Neo-Confucian concepts and terms, especially the terms used by Toegye. The last and concluding chapter...