瑜伽行派における五根・五力についての一考察――『中辺分別論』第IV章を中心として――

抄録

In chapter four of the Madhyāntavibhāga (MAV), the thirty-seven dharmas leading to enlightenment (saptatriṃśad bodhipakṣadharma) are explained. They describe a training method that was also practiced by Buddhist monks during the early stage of Buddhism. This paper deals with the five faculties (indriyāni) and the five powers (balāni) of the thirty-seven dharmas leading to enlightenment. The explanation of the five faculties and the five powers in Yogācāra can be seen in Yogācāra works such as the Śrāvakabhūmi (ŚBh), the MAV and the Mahāyānasūtrālaṃkāra (MSA). This paper compares the interpretation of the five faculties and the five powers in the Yogācāra context. Special focus is given to the fact that the MAV and the ŚBh show different interpretations about the relationship between the five faculties/the five powers and the traditional practice of the four wholesome faculties (warmth, summit, patience and the highest worldly wisdom). That is to say, it is pointed out that regarding the common theme of the five faculties and the five powers in the śrāvaka’s path of cultivation, the MAV possibly has transmitted the teaching that is expressed in the ŚBh, which is clearly different from the theory of the Sarvāstivāda.