This paper analyses the connection between knowing Dao and ethical transformation in Xunzi’s thought. While there have been many discussions concerning what Dao is and how one may come to Dao, there has not been sufficient attention on how knowing Dao leads to ethical transformation. In Section 2, I explicate Xunzi’s concept of bi 蔽 and suggests that one’s not knowing Dao has to do with a certain problematic state of the heart/mind. In Section 3, I analyse xu虛, yi 一, (...) and jing 靜, which are remedial practices for knowing Dao, and bring out the importance of discerning li 理 for Xunzi. In Sections 4 and 5, I propose an interpretation of the relation between li 理 and qing 情 in the process of ethical transformation. In Section 6, I highlight some remaining ambiguities that can be further investigated to deepen our understanding of Xunzi’s thought. (shrink)