俱舍論記 30.93

30.93

「諸心品類至可易了知」者，論主謙讓，仰推世尊。依如是義，於經部中故有頌言：於一孔雀輪，青、黃、赤、白等，有一切種因相。如是如是果，從如是如是因生。知此等相非餘智境界，唯一切智知。舉易況難。一孔雀輪色差別因尚為難了，況心、心所諸無色法因緣差別可易了知？

Regarding "The varieties of mental classes... can be easily comprehended": the author of the treatise shows humility, deferring to the World-Honoured One. Based on this meaning, there is a verse in the Sautrāntika school: In a single eye of a peacock's feather, with its blue, yellow, red, white, and so on, there are causal aspects of all kinds. Such and such a result arises from such and such a cause. Knowing these aspects is not within the scope of any other cognition; only the Omniscient One knows it. This adduces the easy to illustrate the difficult. If the causes of the differences in color in a single eye of a peacock's feather are still difficult to comprehend, how could the distinctions among causes and conditions of minds and mental factors, which are completely formless dharmas, be easily comprehended?