俱舍論疏 12.208

12.208

論「何緣下三定至遭是外災」，明下定災及所以也。《正理》云「第二靜慮喜受為內災，與輕安俱，潤澤如水，故遍身麁重由此皆除。故經說苦根第二定滅，乃至亦由滅苦所依識身，故說苦根二靜慮滅。雖生上地，識身容現前，隨欲不行，自在故無過。然經言滅苦，據正入定時。初靜慮中猶有尋、伺，無增上喜，不言苦滅。」又云「故初靜慮內具三災，外亦具遭三災所壞。第二靜慮內有二災，故外亦遭二災所壞。第三靜慮內唯一災，故外但遭一災所壞（身麁重是苦根本，第二定輕安能除，故言苦根滅也）。」

The treatise says: "For what reason do the lower three dhyānas... suffer these external disasters?" This explains the disasters of the lower dhyānas and their reasons. The Nyāyānusāra says: "In the second dhyāna, the feeling of joy (prīti) is an internal disaster; accompanied by pliancy (praśrabdhi), it is moist like water, and therefore coarse heaviness (dauṣṭhulya) throughout the entire body is completely eliminated by it. Therefore, the sūtra states that the faculty of suffering ceases in the second dhyāna, up to: it is also due to the cessation of the consciousness-aggregates that support suffering that the faculty of suffering is said to cease in the second dhyāna. Although when born in a higher stage the consciousness-aggregates can appear present, they do not operate according to desire; because there is mastery, there is no fault. However, the sūtra says that suffering ceases, relying on the time of properly entering absorption. In the first dhyāna there are still vitarka and vicāra, and there is no predominant joy; it is not said that suffering ceases." It also says: "Therefore, the first dhyāna internally possesses the three disasters, and externally it also fully suffers destruction by the three disasters. The second dhyāna internally possesses two disasters, hence externally it also suffers destruction by two disasters. The third dhyāna internally possesses only one disaster, hence externally it suffers destruction by only one disaster (the coarse heaviness of the body is the root of suffering; the pliancy of the second dhyāna can eliminate it, hence it is said that the faculty of suffering ceases)."