成唯識論演祕 1.130

1.130

五樂之義具如本論，今對一一略辨名體。為因生樂之因，故名為因樂，體即四法，如疏所列。言「樂相應」者，即順樂受觸等心法；言「所發業」者，謂於樂果而起於業，名樂所發，由此善業得可愛果，名為因樂；或樂相應思，名所發業，所發業能感當樂果，名為因樂。

The meaning of the five blisses is fully detailed in the root treatise; now I briefly distinguish their names and substances one by one. Being the cause that gives rise to bliss, it is called 'causal bliss'; its substance consists of four dharmas, as listed in the Commentary. 'Associated with bliss' refers to mental dharmas such as contact that conform to pleasant feeling. 'Generated action' means karma initiated with respect to a pleasurable fruit, called 'generated by bliss'; because through this wholesome karma one obtains a desirable fruit, it is called causal bliss. Alternatively, volition (cetanā) associated with bliss is called 'generated action'; generated action can induce future pleasurable fruit, so it is called causal bliss.