瑜伽論記 18.262

18.262

思食者，成唯識言：謂有漏思與欲俱轉。又言：此思雖與諸識相應，屬意識者食義偏勝，此意正顯三界有漏八識俱思希可愛境攝益身者，皆思食體。

Regarding mental volition as food: the Cheng weishi lun states: it refers to tainted volition operating together with desire. It also states: although this volition is associated with all consciousnesses, that belonging to the mental consciousness has the pre-eminent sense of food. This intention precisely reveals that tainted volition associated with the eight consciousnesses across the three realms, which hopes for desirable objects and sustains and benefits the body, is entirely the entity of mental volition as food.