sn52.3:2.1 “Reverends, I attained great direct knowledge by developing and cultivating the four kinds of mindfulness meditation.
sn52.3:2.2 What four?
sn52.3:2.3 I meditate observing an aspect of the body—keen, aware, and mindful, rid of covetousness and displeasure for the world.
sn52.3:2.4 I meditate observing an aspect of feelings …
sn52.3:2.5 mind …
sn52.3:2.6 principles—keen, aware, and mindful, rid of covetousness and displeasure for the world.
sn52.3:2.7 I attained great direct knowledge by developing and cultivating these four kinds of mindfulness meditation.
sn52.3:2.8 And it was by developing and cultivating these four kinds of mindfulness meditation that I directly knew the lower principle as lower, the middle principle as middle, and the higher principle as higher.”