Suppose that, upon checking, a mendicant knows this: ‘I am often covetous, malicious, overcome with dullness and drowsiness, restless, doubtful, irritable, defiled in mind, disturbed in body, lazy, and not immersed in samādhi.’ In order to give up those bad, unskillful qualities, they should apply extraordinary enthusiasm, effort, zeal, vigor, perseverance, mindfulness, and situational awareness. Suppose your clothes or head were on fire. In order to extinguish it, you’d apply extraordinary enthusiasm, effort, zeal, vigor, perseverance, mindfulness, and situational awareness. In the same way, in order to give up those bad, unskillful qualities, that mendicant should apply extraordinary enthusiasm …

But suppose that, upon checking, a mendicant knows this: ‘I am often content, kind-hearted, rid of dullness and drowsiness, calm, confident, loving, pure in mind, undisturbed in body, energetic, and immersed in samādhi.’ Grounded on those skillful qualities, they should practice meditation further to end the defilements.”

Numbered Discourses 10.53 6. Your Own Mind Stagnation

“Mendicants, I don’t praise stagnation in skillful qualities, let alone decline. I praise growth in skillful qualities, not stagnation or decline.

And how is there decline in skillful qualities, not stagnation or growth? It’s when a mendicant has a certain degree of faith, ethics, generosity, wisdom, and eloquence. Those qualities neither stagnate nor grow in them. I call this decline in skillful qualities, not stagnation or growth. This is how there’s decline in skillful qualities, not stagnation or growth.