"A virtuous monk, Kotthita my friend, should attend in an appropriate way to the five aggregates of clinging as inconstant, stressful, a disease, a cancer, an arrow, painful, an affliction, alien, a dissolution, an emptiness, not-self. Which five? Form as an aggregate of clinging, feeling...perception...fabrications...consciousness as an aggregate of clinging. A virtuous monk should attend in an appropriate way to these five aggregates of clinging as inconstant, stressful, a disease, a cancer, an arrow, painful, an affliction, alien, a dissolution, an emptiness, not-self. For it is possible that a virtuous monk, attending in an appropriate way to these five aggregates of clinging as inconstant...not-self, would realize the fruit of stream-entry."
"Then which things should a monk who has attained stream-entry attend to in an appropriate way?"
"A monk who has attained stream-entry should attend in an appropriate way to these five aggregates of clinging as inconstant, stressful, a disease, a cancer, an arrow, painful, an affliction, alien, a dissolution, an emptiness, not-self. For it is possible that a monk who has attained stream-entry, attending in an appropriate way to these five aggregates of clinging as inconstant...not-self, would realize the fruit of once-returning."
"Then which things should a monk who has attained once-returning attend to in an appropriate way?"
"A monk who has attained once-returning should attend in an appropriate way to these five aggregates of clinging as inconstant, stressful, a disease, a cancer, an arrow, painful, an affliction, alien, a dissolution, an emptiness, not-self. For it is possible that a monk who has attained once-returning, attending in an appropriate way to these five aggregates of clinging as inconstant...not-self, would realize the fruit of non-returning."
"Then which things should a monk who has attained non-returning attend to in an appropriate way?"
"A monk who has attained non-returning should attend in an appropriate way to these five aggregates of clinging as inconstant, stressful, a disease, a cancer, an arrow, painful, an affliction, alien, a dissolution, an emptiness, not-self. For it is possible that a monk who has attained non-returning, attending in an appropriate way to these five aggregates of clinging as inconstant...not-self, would realize the fruit of arahantship."
"Then which things should an arahant attend to in an appropriate way?"
"An arahant should attend in an appropriate way to these five aggregates of clinging as inconstant, stressful, a disease, a cancer, an arrow, painful, an affliction, alien, a dissolution, an emptiness, not-self. Although, for an arahant, there is nothing further to do, and nothing to add to what has been done, still these things -- when developed & pursued -- lead both to a pleasant abiding in the here-&-now and to mindfulness & alertness."