Nibbanasutta 3.1

3.1

Puna caparaṃ, bhikkhave, idhekacco puggalo nibbāne sukhānupassī viharati sukhasaññī sukhapaṭisaṃvedī satataṃ samitaṃ abbokiṇṇaṃ cetasā adhimuccamāno paññāya pariyogāhamāno.

Next, take an individual who meditates observing the happiness in extinguishment. They perceive happiness and experience happiness. Constantly, continually, and without interruption, they apply the mind and fathom with wisdom.