摩訶止觀 7.49

7.49

法性之法本非有我，凡夫之人橫計有我。本非無我，二乘之人橫計無我。今觀法性即空，一切皆空；空中無我，是名「凡夫倒破，枯念處成」。法性即假，一切皆假施設，自在不滯，我義具足，是名「二乘倒破，榮念處成」。觀法本際即非空非假。非空故非無我；非假故非於我。邊倒不生名「入涅槃」；中間理顯名「祕密藏」。

The dharmas of the dharmatā fundamentally have no self, yet ordinary beings arbitrarily consider there to be a self. Fundamentally they are not non-self, yet followers of the two vehicles arbitrarily consider them to be non-self. Now, contemplating that the dharmatā is identical to emptiness, all is identical to emptiness; in emptiness there is no self, which is called “destroying the ordinary beings' inversion, and the withered smṛtyupasthāna is accomplished.” The dharmatā is identical to the provisional, and all are provisional designations, unobstructed and sovereign, fully possessing the meaning of self; this is called “destroying the two vehicles' inversion, and the flourishing smṛtyupasthāna is accomplished.” Contemplating that the fundamental limit of dharmas is neither empty nor provisional. Because it is not empty, it is not non-self; because it is not provisional, it is not self. The non-arising of extreme inversions is called “entering nirvāṇa”; the manifestation of the principle in between is called the “secret treasury.”