Dutiyasaññā sutta: Perceptions (2nd)

“Mendicants, these ten perceptions, when developed and cultivated, are very fruitful and beneficial. They have freedom from death as their objective and culmination. What ten? The perceptions of impermanence, not-self, death, repulsiveness of food, dissatisfaction with the whole world, a skeleton, a worm-infested corpse, a livid corpse, a split open corpse, and a bloated corpse. These ten perceptions, when developed and cultivated, are very fruitful and beneficial. They have freedom from death as their objective and culmination.”