“Bodhipakkhiyā dhammā” is the complete sequence of daily life practice advocated by contemporary eminent monks. The purpose of this study is to explore the origin of “Bodhipakkhiyā dhammā” and the reason for practice. Therefore, the rationale and sub-development of the categories of different components have been examined. During the examination, it was found that the “viriya” single was repeated in various groups, which means it has a significant meaning in its practice. It was also similar to the vocabulary of “catūsu sammappadhāna.” Thus, the relationship between the above two has been clarified. By clarifying the concept and meaning of “viriya,” the theme of the paper was discussed. The whole paper is divided into five chapters. The first chapter “Introduction” explains the background motivation, research purposes, research scope, research methods, research data, important research results over the years and research structure of the thesis. The second chapter, “Exploring the Sources of the Bodhipakkhiyā dhammā,” is based on the clarification of the interpretation meaning of the “Bodhipakkhiyā dhammā” in the scientific media. By collecting research literature and reading the original Buddhist scriptures, the context of Buddhism development has been understood to explore its rationale.The third chapter, “The relationship between viriya and catūsu sammappadhāna,” examines the development of different language core concepts in practice.The fourth chapter, “The relationship between viriya and Bodhipakkhiyā dhammā” analyzes how the “viriya” is applied in practice in the “Bodhipakkhiyā dhammā” and the meaning of “viriya” in the context of each group.The fifth chapter, “Review of Research Results,” examines whether the study has corresponded with the original objectives of the research, which has become the summary of the research results. It also puts forward re-extensions and recommendations for future research.
