“The ten kinds of foulness are these: the bloated, the livid, the festering, the cutup, the gnawed, the scattered, the hacked and scattered, the bleeding, the worminfested, and a skeleton”
“one who sees internal materiality as foul (ugly) fully understands nutriment consisting of physical nutriment. He abandons the perversion [of perceiving] beauty in the foul (ugly), he crosses the flood of sense desire, he is loosed from the bond of sense desire…”
The Path of Purification – Buddhaghosa