瑜伽師地論略纂 16.94

16.94

Regarding the treatise's statement, "When odors, tastes, and tangible objects are being digested and transformed, they then are able to nourish," and so forth: these three have gross and subtle aspects and possess the function of increasing or diminishing; the substance of the visual object (rūpa) is gross and cannot increase or diminish [the faculties]. If, when various solid pieces of food are swallowed, they cause the mind to be joyful, and at that time it is called sparśāhāra: this takes the mind's being made joyful, so that the mental factor of contact (sparśa-caitta) itself is the essence of sparśāhāra, and does not take the sensory datum as the essence of sparśāhāra.