首楞嚴義疏注經 7.215

7.215

"Because in the worlds there is the murderous inverted [illusion] through enmity and harm and revolving transmigration, combining with monstrosity, eighty-four thousand thoughts of eating one's father and mother are formed. For this reason, there are thoughtless kalalas that form thoughtlessness out of non-thoughtlessness, circulating through the lands; such as the dirt-owl adopting a clod of earth as its chick, and the mirror-breaking bird taking the fruit of a poisonous tree to brood as its young—when the young are grown, the parents are both eaten by them; their kind fills this class."