成唯識論演祕 5.114

5.114

答：五十七云：那落迦中無有段食，定地諸天亦復如是。諸那落迦多由先業力所任持而得久住，雖有廣大諸根大種損害因緣，而不能死，然彼亦有諸微細風隨入身分，以之為食，難可了知，是故不說。此文既云「諸那落迦」，故知後文而假說也。不爾，前後豈魚肉乎，言風等食，假說應知。

Answer: Fascicle fifty-seven states: In the hells there is no solid food, and the same holds for the devas of the meditative stages. The hell beings mostly abide for a long time supported by the power of prior karma; although there are vast causes and conditions that harm the faculties and great elements, they cannot die; yet they also have subtle winds that enter their bodily parts in succession and serve as food, which is difficult to perceive clearly, and therefore it is not mentioned. Since this text says "the hell beings [in general]," we know that the later text is a metaphorical expression. If not, would there not be a contradiction between earlier and later? The mention of wind and so forth as food should be understood as a metaphorical expression.