“Bhikkhus, these four establishments of mindfulness, when developed and cultivated, are noble and emancipating; they lead the one who acts upon them out to the complete destruction of suffering. 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. He dwells contemplating feelings in feelings … mind in mind … phenomena in phenomena, ardent, clearly comprehending, mindful, having removed covetousness and displeasure in regard to the world. sn.v.167
“These four establishments of mindfulness, bhikkhus, when developed and cultivated, are noble and emancipating; they lead the one who acts upon them out to the complete destruction of suffering.”