俱舍論記 22.70

22.70

「謂若未遭至能生樂因」者，釋初章。疲謂疲勞，欲謂婬欲，或疲婬欲。食對治飢，飲對治渴，溫對治寒，涼對治熱，停息坐臥對治疲欲。謂若未遭飢等苦逼，不於食等諸樂因中生於樂覺。若遭飢等苦逼迫時，方於食等諸樂因中生於樂覺。故於對治飢等重苦食等因中，愚夫妄計此輕苦因能生於樂，實無決定能生樂因。

As for "That is, if one has not yet encountered... a cause capable of producing pleasure": this explains the first section. "Weariness" means fatigue; "desire" means sexual desire; or it means fatigue from sexual desire. Food remedies hunger; drink remedies thirst; warmth remedies cold; coolness remedies heat; resting, sitting, and lying down remedy weariness and desire. That is, if one has not yet been afflicted by the suffering of hunger and the like, an awareness of pleasure does not arise with respect to the various causes of pleasure such as food. It is only when afflicted by the suffering of hunger and the like that an awareness of pleasure arises with respect to the causes of pleasure such as food. Therefore, regarding the causes such as food that remedy severe suffering like hunger, the foolish ordinary person falsely imagines that this cause of light suffering is able to produce pleasure; in reality, there is no definite cause that produces pleasure.