大方廣佛華嚴經隨疏演義鈔 75.38

75.38

Regarding the Commentary's statement, "Second, the cause refers to the hindrance of sleep": the Mahāprajñāpāramitopadeśa says, "Furthermore, just as in a dream one rejoices where there is nothing joyful, grows angry where there is nothing anger-provoking, and fears where there is nothing fearful, so too are the sentient beings of the three realms: through the power of the sleep of avidyā, they become angry when they should not become angry," and so on.