 In his   Three Natures Treatise,  the Yogacara philosopher Vasubandhu names the natures for each of these three “realities.” He says that inexpressible and ineffable reality has the nature of “consummation” (or perfection): this reality is perfect, and its nature is nothing other than emptiness. He says that unreal imaginative constructions, appearances appearing as nothing other than appearances, have the nature of “other-dependence,” which is synonymous with dependent arising (pratitya-samutpada). He says, finally, that confusions about unreal imaginative constructions have the nature of “fabrication” (or imagination, or discrimination). 