[259] "Bhikkhus, there are these two powers (bala). What two? The power of reflection (paṭisaṅkhānabala) and the power of development (bhāvanābala).
"And what, bhikkhus, is the power of reflection? Here, bhikkhus, someone reflects thus: 'Misconduct by body (kāyaduccarita) has an evil result both in this very life and in the life to come; misconduct by speech (vacīduccarita) has an evil result both in this very life and in the life to come; misconduct by mind (manoduccarita) has an evil result both in this very life and in the life to come.' Having reflected thus, he abandons misconduct by body and develops good conduct by body; he abandons misconduct by speech and develops good conduct by speech; he abandons misconduct by mind and develops good conduct by mind; he maintains himself in purity. This, bhikkhus, is called the power of reflection.
"And what, bhikkhus, is the power of development? Here, bhikkhus, a bhikkhu, quite secluded from sensual pleasures, secluded from unwholesome states, enters and dwells in the first jhāna, which is accompanied by thought (vitakka) and examination (vicāra), with rapture and pleasure born of seclusion. With the subsiding of thought and examination, he enters and dwells in the second jhāna, which has internal confidence and unification of mind (citta), is without thought and without examination, and has rapture and pleasure born of concentration (samādhi). With the fading away of rapture, he dwells equanimous and, with mindfulness and clear comprehension, he experiences pleasure with the body; he enters and dwells in the third jhāna, of which the noble ones declare: 'He is equanimous, mindful, one who dwells in pleasure.' With the abandoning of pleasure and the abandoning of pain, and with the previous passing away of joy and grief, he enters and dwells in the fourth jhāna, which is neither painful nor pleasant and has purity of mindfulness due to equanimity. This, bhikkhus, is called the power of development.
"These, bhikkhus, are the two powers."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.