Saṁyutta Nikāya 46.49 5.

The Discourse on the Internal Factor

Cakkavattivagga Ajjhattikaṅgasutta “Ajjhattikaṁ, bhikkhave, aṅganti karitvā nāññaṁ ekaṅgampi samanupassāmi sattannaṁ bojjhaṅgānaṁ uppādāya, yathayidaṁ—bhikkhave, yonisomanasikāro.

Disciples, considering the internal factor, I do not see any other single factor that is so conducive to the arising of the seven factors of enlightenment as wise attention.

Yonisomanasikārasampannassetaṁ, bhikkhave, bhikkhuno pāṭikaṅkhaṁ—satta bojjhaṅge bhāvessati, satta bojjhaṅge bahulīkarissati.

For a disciple who is endowed with wise attention, it is to be expected that he will develop and cultivate the seven factors of enlightenment.

Kathañca, bhikkhave, bhikkhu yonisomanasikārasampanno satta bojjhaṅge bhāveti, satta bojjhaṅge bahulīkaroti?

And how does a disciple who is endowed with wise attention develop and cultivate the seven factors of enlightenment?

Idha, bhikkhave, bhikkhu satisambojjhaṅgaṁ bhāveti vivekanissitaṁ …pe… upekkhāsambojjhaṅgaṁ bhāveti vivekanissitaṁ virāganissitaṁ nirodhanissitaṁ vossaggapariṇāmiṁ. Evaṁ kho, bhikkhave, bhikkhu yonisomanasikārasampanno satta bojjhaṅge bhāveti, satta bojjhaṅge bahulīkarotī”ti. Navamaṁ.

Here a disciple develops the enlightenment factor of mindfulness, which is based on seclusion, dispassion, and cessation, and matures in relinquishment. He develops the enlightenment factor of equanimity, which is based on seclusion, dispassion, and cessation, and matures in relinquishment.

In this way a disciple who is endowed with wise attention develops and cultivates the seven factors of enlightenment.