The mind-system which is the source of the evil out-flowings consists of the five sense-organs and their accompanying sense-minds all of which are unified in the discriminating-mind. There is an unending succession of sense-concepts flowing into this discriminating or thinking-mind which combines them and discriminates them and passes judgment upon them as to their goodness or badness. Then follows aversion to or desire for them and attachment and deed; thus the entire system moves on continuously and closely bound together. But it fails to see and understand that what it sees and discriminates and grasps is only a manifestation of its own activity and has no other basis, and so the mind goes on erroneously perceiving and discriminating differences of forms and qualities, not remaining still even for a minute.

(The Lankavatara Sutra)