俱舍論記 21.59

21.59

「謂五種法至心昧劣性」者，答。食謂能益。此五能益惛、眠，故是彼食。又解：此五皆是小惑中攝。𧄼瞢者，眠之先兆。不樂者，情不歡也。頻申者，由勞事業疲倦所生，能起頻申，因從果號。食不平等者，由所飲食過於恒度，或香、味、觸隨有偏增，能令食者身心沈昧。此從食不平等生果，從因為名。心昧劣性者，謂由彼力，令心王取境不明為昧，能取力微為劣，從用為名。

"It refers to five dharmas ... and the dull, weak nature of the mind": this is the answer. "Nutriment" means that which can nourish. These five can nourish styāna and drowsiness; therefore, they are their nutriment. Another explanation: These five are all included among minor defilements. "Drowsiness" is the precursor to sleep. "Discontent" means the mind is unhappy. "Yawning" arises from exhaustion due to laborious work; it can arouse yawning, named as the cause from the effect. "Irregular eating" means consuming food exceeding one's normal measure, or where smell, taste, or tangible qualities are excessively intensified in some particular way, which causes the consumer's body and mind to sink into dullness. This is named as the effect arising from irregular eating, designated from its cause. "The dull, weak nature of the mind" means that through their power, the principal mind's apprehension of objects is not clear, which is 'dull', and its power to apprehend is feeble, which is 'weak'; it is named from its function.