俱舍論頌疏論本 3.15

3.15

'Because of predominance in abiding together, defilement, and purification': taking the lower two lines explains these two lines. One should know that the life indriya has a predominant function in the abiding of the nikāyasabhāga; one should know that the five feelings have a predominant function in defiled phenomena, for a sūtra says: 'With pleasant feeling, lust increases; with painful feeling, anger increases; with feeling of equanimity, delusion increases.' One should know that faith and the rest have a predominant function in purified phenomena. Because the five factors of faith and the rest subdue the defilements in the stages of Heat and Summits, and lead to the noble path. Saying 'one should know' encourages accepting that each and every one can serve as an indriya.