俱舍論記 3.40

3.40

Regarding "The treatise says: ... is named the faculty of grief": this explains the first five lines. "Body" has two meanings. If one speaks of the six bodies of sensation, "body" is the real entity. If one speaks of bodily sensation and mental sensation, "body" is the aggregation of form (rūpa). An aggregation of form is named "body." Here, "body" means the aggregation of form; that is, because the material faculties arise based on the body, it is called bodily sensation, taking its name from its basis. The rest of the text is easy to understand.

Question: The third dhyāna is extremely delightful to the mind and associates with pleasure; likewise, hell is extremely unpleasant to the mind and should associate with pain.
Explanation: Extreme delight is without conceptual discrimination, so it can associate with pleasure. Extreme harm has conceptual discrimination, so it does not associate with pain. If based on the Mahāyāna, the mental consciousness in hell also associates with pain.