8.
The Discourse on the Monk
830.
"Because of having developed and cultivated the four bases for spiritual power, monks, a monk, through the elimination of the mental corruptions, realised by his own direct knowledge, in this very life, the liberation of mind and the liberation by wisdom that are free from mental corruptions and, having entered upon them, dwells in them.
"Which four? Here, monks, a monk develops the basis for spiritual power that possesses concentration due to desire and volitional activities of striving, concentration due to energy, etc. concentration due to mind, etc. develops the basis for spiritual power that possesses concentration due to investigation and volitional activities of striving. Because of having developed and cultivated these four bases for spiritual power, monks, a monk, through the elimination of the mental corruptions, realised by his own direct knowledge, in this very life, the liberation of mind and the liberation by wisdom that are free from mental corruptions and, having entered upon them, dwells in them." The eighth.