อาทิตตปริยายสูตร: ดับไฟในใจ ราคะ โทสะ โมหะ สู่นิพพาน
Summary
The Ādittapariyāya Sutta is the discourse after which more than a thousand monks reached arahantship at once, which is why it is known as the Fire Sermon.
The Buddha says everything is burning — with the fires of lust, hatred and delusion, which burn the mind daily without our noticing.
The most direct image is holding a live coal: the tighter the grip, the worse the burn.
The way out he taught is to see clearly and let go; when the grip releases, the mind cools and is freed from suffering.
Key points
The result of this sutta was unusual
Over a thousand monks realised at once, which is rare in the canon.
"Everything is burning" is not loose metaphor
He names the fires precisely: lust, hatred, delusion.
The burning runs constantly and unnoticed
Habituation turns the heat into what feels like a normal state of mind.
A tighter grip on the coal burns worse
The image explains the link between clinging and suffering in one line.
Seeing comes before letting go
Release does not come from forcing but from seeing things as they are.