瑜伽論記 4.52

4.52

下明食非食，食者資長義增生蓋緣，非食者斷滅蓋法。若能於此遠離染心等者，唯舉淨妙相之所以也。

Below, it clarifies food and non-food: 'food' means nourishing and increasing the conditions that produce the hindrances; 'non-food' means the phenomena that extinguish and sever the hindrances. In 'if one is able to stay far away from a defiled mind regarding this, etc.', it only brings up the reason for the pure and subtle sign.