This study examines the life history of middle-aged men who are affiliated with a particular religion and assesses their overall satisfaction of life. The life history data were collected from in-depth interviews between March and April in 2012. The interviewees were six middle-aged men who believed in “Won-Buddhism”. We covered four topics related to qualities of life among the middle-aged : the starting event for religious life, religious activities and changes in family relationships, religious activities and changes in mental health, religion and life satisfaction. Throughout those analyses, this study tries to show the kind of influence religion has upon health and societal support. Comparing the participants before and after having religious faith, this study attempts to figure out the influence of societal support and level of health. In order to understand the life of the middle-aged male participants of this research, this study employed life history methods and life history data analysis in order to provide an effectual theoretical life course perspective. This urged us to use an in-depth understanding of life and a contextual theory that enables to connect one’s past experience with the present experience. This study leads to the conclusion that understanding one’s life does not simply end up with an investigation of one’s present situation, but it needs to examine the process of one’s life history as well.