Bāhiya Sutta

In what is seen there must be only what is seen, in what is heard there must be only what is heard, in what is sensed there must be only what is sensed, in what is cognized there must be only what is cognized.

“In the place where the water, earth, fire, and wind find no footing,

There the stars do not shine, nor does the sun give light,

There the moon does not glow, there darkness is not found.

And when the sage, the brāhmaṇa, has experienced nibbāna through his own sagacity,

Then from both form and formless, happiness and suffering, he is free.”