瑜伽論記 18.250

18.250

言於餘二受，愛恚擾亂，此麁重苦非易可了者，樂受由愛擾亂說為壞苦，苦受由恚擾亂說為苦苦雖是行苦其相難知。次下喻說，今喻如文。

Regarding "In the other two feelings, disturbed by craving and hostility, this coarse-heavy suffering is not easily understood": pleasant feeling is said to be the suffering of change because it is disturbed by craving; painful feeling is said to be the suffering of suffering because it is disturbed by hostility; although they are the suffering of conditioned existence, their characteristic is difficult to know. Next below is the explanation through similes, which is now as in the text.