[66] **"Having fully understood perception, one may cross the flood"**: *Perception* means: perception (saññā) of sensual pleasures, perception of ill will, perception of harming, perception of renunciation, perception of non-ill will, perception of non-harming, perception of forms, perception of sounds, perception of odours, perception of tastes, perception of tangibles, perception of dhammas — whatever perception of such a kind, the perceiving, the state of having perceived: this is called perception. **"Having fully understood perception"**: having fully understood perception by means of the three kinds of full understanding (pariññā): full understanding as the known (ñātapariññā), full understanding as scrutinization (tīraṇapariññā), and full understanding as abandoning (pahānapariññā).
What is full understanding as the known? One knows perception: "This is perception of sensual pleasures, this is perception of ill will, this is perception of harming, this is perception of renunciation, this is perception of non-ill will, this is perception of non-harming, this is perception of forms, this is perception of sounds, this is perception of odours, this is perception of tastes, this is perception of tangibles, this is perception of dhammas" — thus one knows and sees. This is full understanding as the known.
What is full understanding as scrutinization? Having made it known thus, one scrutinizes perception as impermanent, as suffering (dukkha), as a disease, as a boil, as a dart, as misery, as an affliction, as alien, as disintegrating, as a calamity, as a disaster, as a peril, as an obstacle, as unstable, as brittle … as origin, as passing away, as gratification, as danger, as escape — thus one scrutinizes it. This is full understanding as scrutinization.
What is full understanding as abandoning? Having scrutinized thus, one abandons, dispels, terminates, and obliterates desire and lust (chandarāga) for perception. For this was said by the Blessed One: "Bhikkhus, whatever desire and lust there is for perception — abandon it. Thus that perception will be abandoned, cut off at the root, made like a palm stump, obliterated, no longer subject to arise in the future." This is full understanding as abandoning.
**"Having fully understood perception"**: having fully understood perception by means of these three kinds of full understanding. **"One may cross the flood"**: one may cross, cross over, cross beyond, pass over, and transcend the flood (ogha) of sensuality, the flood of existence, the flood of views, and the flood of ignorance. Hence: "Having fully understood perception, one may cross the flood."
[Variant readings noted in the Siam Raṭṭha edition: ¹ M. *na palimpati*; ² M. *apalitto*; ³ P. M. Yu. *pariggahesu*.]
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.