This is how I heard. In those days, the Buddha was living in the city of Sāvatthī …
“Monks, develop concentration. A monk who has a concentrated mind has true understanding. What does he truly understand? He truly understands: ‘This is suffering.’ He truly understands: ‘This is the origin of suffering.’ He truly understands: ‘This is the end of suffering.’ He truly understands: ‘This is the path that leads to the end of suffering’. Monks, develop concentration. A monk who has a concentrated mind has true understanding.
“Therefore, monks, you should make an effort to understand: ‘This is suffering.’ You should make an effort to understand: ‘This is the origin of suffering.’ You should make an effort to understand: ‘This is the end of suffering.’ You should make an effort to understand: ‘This is the path that leads to the end of suffering.’”
