9.
The Discourse on One Thing
210.
"I do not, monks, perceive any other single phenomenon which, when thus developed and cultivated, leads to the abandoning of phenomena subject to mental fetters, as do, monks, the seven factors of enlightenment.
Which seven?
The enlightenment factor of mindfulness, etc.
the enlightenment factor of equanimity.
And how, monks, are the seven factors of enlightenment developed, how are they cultivated, so that they lead to the abandoning of phenomena subject to mental fetters?
"Here, monks, a monk develops the enlightenment factor of mindfulness, based upon seclusion, etc. He develops the enlightenment factor of equanimity, based upon seclusion, based upon dispassion, based upon cessation, maturing in release. Thus developed, monks, the seven factors of enlightenment, thus cultivated, lead to the abandoning of phenomena subject to mental fetters.
"And what, monks, are phenomena subject to mental fetters? The eye, monks, is a phenomenon subject to mental fetters. Here these shackles of mental fetters and clamps arise, etc. The tongue is a phenomenon subject to mental fetters. Here these shackles of mental fetters and clamps arise, etc. The mind is a phenomenon subject to mental fetters. Here these shackles of mental fetters and clamps arise. These are called, monks, phenomena subject to mental fetters." The ninth.