Where the perception of the dimension of neither perception nor non-perception ceases, and those who have thoroughly ended the perception of the dimension of neither perception nor non-perception meditate, I say: ‘Clearly those venerables are desireless, quenched, crossed over, and gone beyond in that respect.’ If someone should say, ‘I do not know or see where the perception of the dimension of neither perception nor non-perception ceases’, they should be told: ‘It’s when a mendicant, going totally beyond the dimension of neither perception nor non-perception, enters and remains in the cessation of perception and feeling. That’s where the perception of the dimension of neither perception nor non-perception ceases.’ Clearly someone who is not devious or deceitful would approve and agree with that statement. They’d say ‘Good!’ and bowing down, they’d pay homage with cupped palms.
These are the nine progressive meditative attainments.”
Numbered Discourses 9.34 4. The Great Chapter Extinguishment is Bliss
At one time Venerable Sāriputta was staying near Rājagaha in the Bamboo Grove, the squirrels’ feeding ground.
There he addressed the mendicants: “Reverends, extinguishment is bliss! Extinguishment is bliss!”
When he said this, Venerable Udāyī said to him, “But Reverend Sāriputta, what’s blissful about it, since nothing is felt?”
“The fact that nothing is felt is precisely what’s blissful about it.