Furthermore, when a mendicant is walking they know: ‘I am walking.’ When standing they know: ‘I am standing.’ When sitting they know: ‘I am sitting.’ And when lying down they know: ‘I am lying down.’ Whatever posture their body is in, they know it. As they meditate like this—diligent, keen, and resolute—memories and thoughts tied to domestic life are given up. Their mind becomes stilled internally; it settles, unifies, and becomes immersed in samādhi. That too is how a mendicant develops mindfulness of the body.

Furthermore, a mendicant acts with situational awareness when going out and coming back; when looking ahead and aside; when bending and extending the limbs; when bearing the outer robe, bowl and robes; when eating, drinking, chewing, and tasting; when urinating and defecating; when walking, standing, sitting, sleeping, waking, speaking, and keeping silent. As they meditate like this—diligent, keen, and resolute—memories and thoughts tied to domestic life are given up. Their mind becomes stilled internally; it settles, unifies, and becomes immersed in samādhi. That too is how a mendicant develops mindfulness of the body.

Furthermore, a mendicant examines their own body, up from the soles of the feet and down from the tips of the hairs, wrapped in skin and full of many kinds of filth. ‘In this body there is head hair, body hair, nails, teeth, skin, flesh, sinews, bones, bone marrow, kidneys, heart, liver, diaphragm, spleen, lungs, intestines, mesentery, undigested food, feces, bile, phlegm, pus, blood, sweat, fat, tears, grease, saliva, snot, synovial fluid, urine.’