成唯識論演祕 2.62

2.62

Although there is no explicit text, speaking according to reason, there can also be conventional [forms], as composite incense may be allowed to be conventional. Therefore, the Yogācārabhūmi, fascicle 54, says: "In the wind moving through the sky, there is no co-arising smell, only that which is conventionally combined." Since it says "conventionally combined," it clearly knows it is conventional; among tastes, there must also be composite tastes, which are analogous to smell and share in conventionality.