This is what I have heard. Once the Blessed One was staying in Gaya at Gaya Head with a thousand monks. There the Blessed One addressed the monks:

“All is burning, monks. And what is the all that is burning, monks? The eye is burning, visible forms are burning, eye consciousness is burning, stimulation of the eye is burning, and also whatever happy, unhappy, or neither happy nor unhappy feeling that comes about conditioned by stimulation of the eye, that too is burning. Burning with what? I say it is burning with the fire of greed, the fire of hatred, the fire of delusion. It is burning with birth, with old age, with death, with grief, with lamentation, with pain, with sorrow, with despair.

“The ear is burning, the nose is burning, the tongue is burning, the body is burning. The mind is burning, ideas are burning, mind consciousness is burning, stimulation of the mind is burning, and also whatever happy, unhappy, or neither happy nor unhappy feeling that comes about conditioned by stimulation of the mind, that too is burning. Burning with what? I say it is burning with the fire of greed, the fire of hatred, the fire of delusion. It is burning with birth, with old age, with death, with grief, with lamentation, with pain, with sorrow, with despair.

“When the informed noble disciple sees this, he becomes disenchanted with the eye, disenchanted with visible forms, disenchanted with eye consciousness, disenchanted with stimulation of the eye, and also whatever happy, unhappy, or neither happy nor unhappy feeling that comes about conditioned by stimulation of the eye, with that too he becomes disenchanted. When the informed noble disciple sees this, he becomes disenchanted with the ear, he becomes disenchanted with the nose, he becomes disenchanted with the tongue, he becomes disenchanted with the body.

“When the informed noble disciple sees this, he becomes disenchanted with the mind, disenchanted with ideas, disenchanted with mind consciousness, disenchanted with stimulation of the mind, and also whatever happy, unhappy, or neither happy nor unhappy feeling that comes about conditioned by stimulation of the mind, with that too he becomes disenchanted.

“Being disenchanted, he becomes dispassionate. Through dispassion, he is freed. Of what is freed, there is knowledge that it is freed. He knows directly: birth is destroyed, the spiritual life lived, done is what was to be done—there is nothing further required to this end.”

This is what the Blessed One said. Gladdened, those monks felt joy at the Blessed One’s words. And even while this explanation was being spoken, the minds of those thousand monks were freed from the taints as a result of not grasping.

From Sayings of the Buddha: A Selection of Suttas from the Pali Nikayas, translated by Rupert Gethin, Oxford: Oxford University Press, 2008, pp. 222-224.