sn51.20:8.1 And how does a mendicant meditate as below, so above; as above, so below?
sn51.20:8.2 It’s when 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.
sn51.20:8.3 ‘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.’
sn51.20:8.4 That’s how a mendicant meditates as below, so above; as above, so below.