法界次第初門 2.44

2.44

Fourth, the liberation of the sphere of space. If, having annihilated the form of the fundamental four dhyānas and the forms in the three liberations, the four bases of mastery, and the eight kṛtsnāyatanas, one single-mindedly takes boundless space as object and enters concentration, one then contemplates that this concentration relies on the skandhas, āyatanas, and dhātus, and therefore is impermanent, suffering, empty, non-self, deceptive, and unreal; generating a mind of revulsion and turning away, one does not cling to or attach to it, but enters deeply and single-mindedly without turning back—this is the liberation of the sphere of space.