In Ji-Kang（嵇康）’s Life Nourishment Theory（〈養生論〉）, he took the immortal as the ideal personality model that had both philosophical and
religious Daoism features. Some scholars declare that Ji-Kang didn’t really believed in immortals, nor tried to be immortal, what he actually cared about was how to promote health and prolong longevity, immortals were only metaphors for Peng’s mental state of Zhuangzi（莊子）. However, Ji-Kang wrote several poems about immortals, demonstrated immortals’ existence, researched the methods to be immortal, contacted with Daoist priests Sun-Deng and Wang-Lie, and went up the mountains to gather herbs. According to Ji-Kang’s texts and behavior, it appears that he did believe in and try to be immortal in a religious way. To gain an overall understanding of Ji-Kang, it is necessary to comprehend his texts from a religious perspective. This text tries to advocate that there are both philosophical and religious Daoism features, a fusion of horizons take place between philosophy and religion in Ji-Kang’s ideal personality theory.