涅槃經遊意 1.85

1.85

雖有六大名不出二種：一體大，二用大。體大者則是法性也，涅槃者則諸佛之法性也。用大者八自在我故名用大也。

Although there are six types of greatness, the names do not go beyond two kinds: first, greatness of essence; second, greatness of function. Greatness of essence is precisely the dharmatā; nirvāṇa is the dharmatā of all Buddhas. Greatness of function is the eight masteries of the self, and is therefore called greatness of function.