成唯識論演祕 2.37

2.37

以一極微對六方面名有方分，既有六方所對不同，能對之微云何體一？應立量云：所執極微，體應不一；可分折故，有方分故；如諸麁色。

Because a single atom faces six directions, it is said to have directional parts. Since the six directions it faces are not identical, how could the substance of the facing atom be one? One should formulate the inference: The posited atom should not be unitary in substance; because it can be divided and because it has directional parts; like all coarse matter.