The purpose of this study is to investigate the relationship between participation satisfaction and behavior intention to conduct on the basis of personality characteristics of personal training studio customers. This study aims to analyze the meaning of Toegye’s pleasure and discuss its meaning in physical education. This study focused on Toegye’s Sansujirak(Pleasure in Nature) as a ground for that. Toegye’s Sansujilak is the fundamental pleasure to renew human nature through play in Sansu, not simply the sensible pleasure felt in nature, which can be understood as a practical meaning, the recovery through the experience through the body and the pleasure of personality cultivation. Especially, it was noted that the stage of the Seong-Jeong(性 -情) harmony would be the stage of the genuine pleasure(眞樂) Toegye would emphasize through Sansujirak. Toegye’s Sansujirak provides a theoretical basis for understanding the meaning of pleasure in physical education. Pleasure in physical education can be classified into sensible pleasure, fundamental pleasure, and the pleasure of the Seong-Jeong harmony based on the starting point of the feeling(所從來). Sensible pleasure means the feelings expressed as biological needs according to the five senses by the operation of Qi(氣). In addition, the fundamental pleasure means the feelings expressed as ethical emotions related to Li(理), the essence of physical education. Moreover, the pleasure of the Seong-Jeong harmony means the feelings naturally expressed through the recovery through the harmony of the experience through the body and the pleasure of personality cultivation.