坐禪三昧經 2.12

2.12

念非有想非無想處，若一切想其患甚多，若病若瘡，若無想，是愚癡處。是故非有想非無想，是第一安隱善處。觀無所有處過，念非有想非無想功德，習念是法，便得非有想非無想處。

Mindful of the sphere of neither perception nor non-perception: if all perceptions have many afflictions, like a disease, like an ulcer, while non-perception is a place of foolishness; therefore, neither perception nor non-perception is the foremost, peaceful, and wholesome place. Contemplating the faults of the sphere of nothingness and mindful of the virtues of neither perception nor non-perception, practicing mindfulness of this dharma, he then attains the sphere of neither perception nor non-perception.