“Mendicants, there are these three feelings. What three?
Pleasant, painful, and neutral feeling.
Pleasant feeling should be seen as suffering. Painful feeling should be seen as a dart. Neutral feeling should be seen as impermanent.
When a mendicant has seen these three feelings in this way, they’re called a mendicant who sees rightly, has cut off craving, cast off the fetters, and by rightly comprehending conceit has made an end of suffering.
A mendicant who sees pleasure as pain, and suffering as a dart, and that peaceful, neutral feeling as impermanent
sees rightly; they completely understand feelings. Completely understanding feelings, they’re without defilements in this very life. That knowledge master is firm in principle; when their body breaks up, they can’t be reckoned.”