成唯識論演祕 2.116

2.116

For instance, upon a single material form there are aspects of suffering, impermanence, desirable, undesirable, down to atomicity, roundness, and all such aspects; hence they are called "many." The five consciousnesses cognize only the intrinsic nature (svalakṣaṇa) of form and the like, which is meant by "one part."