And how is a mendicant skilled in encompassing their own mind? Suppose there was a woman or man who was young, youthful, and fond of adornments, and they check their own reflection in a clean bright mirror or a clear bowl of water. If they see any dirt or blemish there, they’d try to remove it. But if they don’t see any dirt or blemish there, they’re happy with that, as they’ve got all they wished for: ‘How fortunate that I’m clean!’

In the same way, checking is very helpful for a mendicant’s skillful qualities. ‘Am I often covetous or not? Am I often malicious or not? Am I often overcome with dullness and drowsiness or not? Am I often restless or not? Am I often doubtful or not? Am I often irritable or not? Am I often corrupted in mind or not? Am I often disturbed in body or not? Am I often energetic or not? Am I often immersed in samādhi or not?’