When a mendicant possesses these four noble customs, if they live in the east they prevail over discontent, and discontent doesn’t prevail over them. If they live in the west … the north … the south, they prevail over discontent, and discontent doesn’t prevail over them. Why is that? Because the attentive prevail over desire and discontent.
Discontent cannot prevail over the attentive; the attentive are not prevailed over by discontent. The attentive can prevail over discontent, for the attentive are those who prevail over discontent.
Who can hold back the dispeller, who’s cast aside all deeds? Like a pendant of Black Plum River gold, who is worthy to criticize them? Even the gods praise them, and by the Divinity, too, they’re praised.”
Numbered Discourses 4.29 3. At Uruvelā Footprints of the Dhamma
“Mendicants, these four footprints of the Dhamma are primordial, long-standing, customary, and traditional. They are uncorrupted, as they have been since the beginning. They’re not being corrupted now nor will they be. Sensible ascetics and brahmins don’t look down on them. What four? Contentment, good will, right mindfulness, and right immersion.