“Bhikkhus, there are these four establishments of mindfulness. What four? Here, bhikkhus, a bhikkhu dwells contemplating the body in the body, ardent, clearly comprehending, mindful, having removed covetousness and displeasure in regard to the world. As he dwells thus contemplating the body in the body, whatever desire he has for the body is abandoned. With the abandoning of desire, the Deathless is realized.
“He dwells contemplating feelings in feelings … sn.v.182 … mind in mind … phenomena in phenomena … having removed covetousness and displeasure in regard to the world. As he dwells thus contemplating phenomena in phenomena, whatever desire he has for phenomena is abandoned. With the abandoning of desire, the Deathless is realized.”