The Related Suttas Collection 47.27

3. Ethics and Duration

Completely

The same setting.

“Friend, they speak of this person called ‘an adept’. How is an adept defined?”

“Friends, an adept is someone who has completely developed the four kinds of mindfulness meditation.

What four? It’s when a bhikkhu meditates by watching, again and again, an aspect of the body—keen, aware, and mindful, rid of covetousness and displeasure for the world. They meditate watching, again and again, an aspect of feelings … mind … principles—keen, aware, and mindful, rid of covetousness and displeasure for the world. An adept is someone who has completely developed the four kinds of mindfulness meditation.”